Search Class 10 Questions

27 results found for "translation app" in Class 10.

Question Expert General Knowledge Indian History important date of national cultural programs Class 10 Level 41

राष्ट्रीय अनुवाद मिशन किस वर्ष शुरू किया गया था?

In which year was the National Translation Mission launched?

Explanation opens after your attempt
Correct Answer

C. 20082008

Step 1

Concept

The National Translation Mission was launched in 2008. Link it with knowledge dissemination in Indian languages.

Step 2

Why this answer is correct

The correct answer is C. 2008 / 2008. The National Translation Mission was launched in 2008. Link it with knowledge dissemination in Indian languages.

Step 3

Exam Tip

राष्ट्रीय अनुवाद मिशन 2008 में शुरू हुआ था। इसे भारतीय भाषाओं में ज्ञान प्रसार से जोड़ें।

Open Question Page
Ask Friends
Question Medium General Knowledge Indian History Medieval Indian History Class 10 Level 9

अकबर के अनुवाद कार्यों का सांस्कृतिक महत्व क्या था?

What was the cultural importance of Akbar's translation projects?

Explanation opens after your attempt
Correct Answer

A. विभिन्न ज्ञान परंपराओं में संवाद बढ़ाDialogue increased among different knowledge traditions

Step 1

Concept

Persian translations of Sanskrit texts increased cultural exchange. For exams, remember Razmnama.

Step 2

Why this answer is correct

The correct answer is A. विभिन्न ज्ञान परंपराओं में संवाद बढ़ा / Dialogue increased among different knowledge traditions. Persian translations of Sanskrit texts increased cultural exchange. For exams, remember Razmnama.

Step 3

Exam Tip

संस्कृत ग्रंथों के फारसी अनुवाद से सांस्कृतिक आदान प्रदान बढ़ा। परीक्षा में रज्मनामा याद रखें।

Open Question Page
Ask Friends
Question Easy General Knowledge Indian History Medieval Indian History Class 10 Level 12

अकबर के समय अनुवाद विभाग में किस प्रकार का कार्य होता था?

What kind of work was done in the translation department during Akbar's time?

Explanation opens after your attempt
Correct Answer

A. ग्रंथों का विभिन्न भाषाओं में अनुवादTranslation of texts into different languages

Step 1

Concept

Many Sanskrit texts were translated into Persian in Akbar's court. For exams, connect it with cultural synthesis.

Step 2

Why this answer is correct

The correct answer is A. ग्रंथों का विभिन्न भाषाओं में अनुवाद / Translation of texts into different languages. Many Sanskrit texts were translated into Persian in Akbar's court. For exams, connect it with cultural synthesis.

Step 3

Exam Tip

अकबर के दरबार में कई संस्कृत ग्रंथों का फारसी में अनुवाद हुआ। परीक्षा में इसे सांस्कृतिक समन्वय से जोड़ें।

Open Question Page
Ask Friends
Question Medium Mathematics Arithmetic Progressions (AP) Word problems based on APs Class 10 Level 72

एक मोबाइल ऐप में पहले दिन (180) उपयोगकर्ता जुड़े और हर अगले दिन (30) उपयोगकर्ता अधिक जुड़े। (12)वें दिन कितने उपयोगकर्ता जुड़ेंगे?

In a mobile app (180) users join on the first day and (30) more users join each next day. How many users join on the (12)th day?

Explanation opens after your attempt
Correct Answer

C. (510)

Step 1

Concept

The user numbers are \(180,210,240,\ldots\) and \(a_{12}=510\). Exam tip: find a particular day's value using the (n)th term.

Step 2

Why this answer is correct

The correct answer is C. (510). The user numbers are \(180,210,240,\ldots\) and \(a_{12}=510\). Exam tip: find a particular day's value using the (n)th term.

Step 3

Exam Tip

उपयोगकर्ता संख्या \(180,210,240,\ldots\) है और \(a_{12}=510\)। परीक्षा में किसी खास दिन का मान (n)वें पद से निकालें।

Open Question Page
Ask Friends
Question Medium Mathematics Arithmetic Progressions (AP) Word problems based on APs Class 10 Level 72

एक मोबाइल ऐप पर पहले दिन (200) उपयोगकर्ता जुड़े और हर अगले दिन (40) उपयोगकर्ता अधिक जुड़े। (9) दिनों में कुल कितने उपयोगकर्ता जुड़ेंगे?

On a mobile app (200) users join on the first day and (40) more users join each next day. How many users join in (9) days?

Explanation opens after your attempt
Correct Answer

B. (3240)

Step 1

Concept

The user numbers are \(200,240,280,\ldots\) and \(S_9=3240\). Exam tip: treat the daily increase as the common difference.

Step 2

Why this answer is correct

The correct answer is B. (3240). The user numbers are \(200,240,280,\ldots\) and \(S_9=3240\). Exam tip: treat the daily increase as the common difference.

Step 3

Exam Tip

उपयोगकर्ता संख्या \(200,240,280,\ldots\) है और \(S_9=3240\)। परीक्षा में दैनिक वृद्धि को सार्व अंतर मानें।

Open Question Page
Ask Friends
Question Medium Mathematics Arithmetic Progressions (AP) Word problems based on APs Class 10 Level 71

एक मोबाइल ऐप में पहले दिन (150) उपयोगकर्ता जुड़े और हर अगले दिन (25) उपयोगकर्ता अधिक जुड़े। (11)वें दिन कितने उपयोगकर्ता जुड़ेंगे?

In a mobile app (150) users join on the first day and (25) more users join each next day. How many users join on the (11)th day?

Explanation opens after your attempt
Correct Answer

B. (400)

Step 1

Concept

The user numbers are \(150,175,200,\ldots\) and \(a_{11}=400\). Exam tip: find a particular day's value using the (n)th term.

Step 2

Why this answer is correct

The correct answer is B. (400). The user numbers are \(150,175,200,\ldots\) and \(a_{11}=400\). Exam tip: find a particular day's value using the (n)th term.

Step 3

Exam Tip

उपयोगकर्ता संख्या \(150,175,200,\ldots\) है और \(a_{11}=400\)। परीक्षा में किसी खास दिन का मान (n)वें पद से निकालें।

Open Question Page
Ask Friends
Question Easy Mathematics Arithmetic Progressions (AP) Word problems based on APs Class 10 Level 72

एक मोबाइल ऐप पर पहले दिन (120) यूज़र जुड़े और हर अगले दिन (30) यूज़र अधिक जुड़े। (6) दिनों में कुल कितने यूज़र जुड़ेंगे?

On a mobile app (120) users joined on the first day and (30) more users joined each next day. How many users join in (6) days?

Explanation opens after your attempt
Correct Answer

C. (1170)

Step 1

Concept

The user numbers are \(120,150,180,\ldots\). \(S_6=1170\), so (1170) users join.

Step 2

Why this answer is correct

The correct answer is C. (1170). The user numbers are \(120,150,180,\ldots\). \(S_6=1170\), so (1170) users join.

Step 3

Exam Tip

यूज़र संख्या \(120,150,180,\ldots\) है। \(S_6=1170\) इसलिए कुल (1170) यूज़र जुड़ेंगे।

Open Question Page
Ask Friends
Question Easy Mathematics Arithmetic Progressions (AP) Word problems based on APs Class 10 Level 71

एक मोबाइल ऐप पर पहले दिन (100) यूज़र जुड़े और हर अगले दिन (50) यूज़र अधिक जुड़े। (5) दिनों में कुल कितने यूज़र जुड़ेंगे?

On a mobile app (100) users joined on the first day and (50) more users joined each next day. How many users join in (5) days?

Explanation opens after your attempt
Correct Answer

C. (1000)

Step 1

Concept

The user numbers are \(100,150,200,\ldots\). \(S_5=1000\) so (1000) users join.

Step 2

Why this answer is correct

The correct answer is C. (1000). The user numbers are \(100,150,200,\ldots\). \(S_5=1000\) so (1000) users join.

Step 3

Exam Tip

यूज़र संख्या \(100,150,200,\ldots\) है। \(S_5=1000\) इसलिए कुल (1000) यूज़र जुड़ेंगे।

Open Question Page
Ask Friends
Question Expert General Knowledge Indian History Famous Indian Rulers Class 10 Level 32

दारा शिकोह किस धार्मिक सांस्कृतिक ग्रंथ के फारसी अनुवाद से विशेष रूप से जुड़ा है?

Dara Shikoh is especially associated with the Persian translation of which religious cultural texts?

Explanation opens after your attempt
Correct Answer

A. उपनिषदUpanishads

Step 1

Concept

Dara Shikoh promoted cultural dialogue through Persian translations of the Upanishads. Remember him as Aurangzeb's brother in exams.

Step 2

Why this answer is correct

The correct answer is A. उपनिषद / Upanishads. Dara Shikoh promoted cultural dialogue through Persian translations of the Upanishads. Remember him as Aurangzeb's brother in exams.

Step 3

Exam Tip

दारा शिकोह ने उपनिषदों के फारसी अनुवाद से सांस्कृतिक संवाद को बढ़ाया। परीक्षा में उसे औरंगजेब के भाई के रूप में याद रखें।

Open Question Page
Ask Friends
Question Hard General Knowledge Indian History Medieval Indian History Class 10 Level 11

दाराशिकोह द्वारा उपनिषदों के फारसी अनुवाद को किस नाम से जाना जाता है?

The Persian translation of the Upanishads by Dara Shikoh is known by which name?

Explanation opens after your attempt
Correct Answer

A. सिर्र-ए-अकबरSirr-i-Akbar

Step 1

Concept

Sirr-i-Akbar shows Dara Shikoh's interest in cultural synthesis. Exam tip: remember translation works in Mughal culture.

Step 2

Why this answer is correct

The correct answer is A. सिर्र-ए-अकबर / Sirr-i-Akbar. Sirr-i-Akbar shows Dara Shikoh's interest in cultural synthesis. Exam tip: remember translation works in Mughal culture.

Step 3

Exam Tip

सिर्र-ए-अकबर दाराशिकोह की सांस्कृतिक समन्वय रुचि को दिखाता है। परीक्षा में मुगल संस्कृति में अनुवाद कार्यों को याद रखें।

Open Question Page
Ask Friends
Question Hard General Knowledge Indian History Medieval Indian History Class 10 Level 12

दारा शिकोह किस ग्रंथ के फारसी अनुवाद से विशेष रूप से जुड़ा है?

Dara Shikoh is especially associated with the Persian translation of which texts?

Explanation opens after your attempt
Correct Answer

A. उपनिषदUpanishads

Step 1

Concept

Dara Shikoh promoted religious dialogue through the Persian translation Sirr-i-Akbar of the Upanishads. Exam tip is to link him with liberal intellectual traditions.

Step 2

Why this answer is correct

The correct answer is A. उपनिषद / Upanishads. Dara Shikoh promoted religious dialogue through the Persian translation Sirr-i-Akbar of the Upanishads. Exam tip is to link him with liberal intellectual traditions.

Step 3

Exam Tip

दारा शिकोह ने उपनिषदों के फारसी अनुवाद सिर्र-ए-अकबर से धार्मिक संवाद को बढ़ाया। परीक्षा में उसे उदार बौद्धिक परंपरा से जोड़ें।

Open Question Page
Ask Friends
Question Hard General Knowledge Indian History Medieval Indian History Class 10 Level 9

मुगल काल में अनुवाद विभाग की स्थापना किस शासक के दरबार से विशेष रूप से जुड़ी है?

The establishment of a translation department in the Mughal period is especially associated with whose court?

Explanation opens after your attempt
Correct Answer

B. अकबरAkbar

Step 1

Concept

Many Sanskrit texts were translated into Persian at Akbar's court. Exam tip: connect it with cultural synthesis.

Step 2

Why this answer is correct

The correct answer is B. अकबर / Akbar. Many Sanskrit texts were translated into Persian at Akbar's court. Exam tip: connect it with cultural synthesis.

Step 3

Exam Tip

अकबर के दरबार में कई संस्कृत ग्रंथों का फारसी में अनुवाद हुआ। परीक्षा में इसे सांस्कृतिक समन्वय की नीति से जोड़ें।

Open Question Page
Ask Friends
Question Medium General Knowledge Indian History Medieval Indian History Class 10 Level 13

दारा शिकोह किस ग्रंथ के फारसी अनुवाद से जुड़ा था?

Dara Shikoh was associated with the Persian translation of which text?

Explanation opens after your attempt
Correct Answer

D. उपनिषदUpanishads

Step 1

Concept

Dara Shikoh was associated with the Persian translation of the Upanishads. He is known for religious and cultural dialogue.

Step 2

Why this answer is correct

The correct answer is D. उपनिषद / Upanishads. Dara Shikoh was associated with the Persian translation of the Upanishads. He is known for religious and cultural dialogue.

Step 3

Exam Tip

दारा शिकोह ने उपनिषदों के फारसी अनुवाद से जुड़ा कार्य किया। वह धार्मिक और सांस्कृतिक संवाद के लिए प्रसिद्ध है।

Open Question Page
Ask Friends
Question Easy General Knowledge Indian History Medieval Indian History Class 10 Level 12

महाभारत का फारसी अनुवाद अकबर के समय किस नाम से जाना गया?

The Persian translation of the Mahabharata during Akbar's reign was known by which name?

Explanation opens after your attempt
Correct Answer

A. रज्मनामाRazmnama

Step 1

Concept

The Persian translation of the Mahabharata was called Razmnama. For exams, remember Akbar's translation projects.

Step 2

Why this answer is correct

The correct answer is A. रज्मनामा / Razmnama. The Persian translation of the Mahabharata was called Razmnama. For exams, remember Akbar's translation projects.

Step 3

Exam Tip

महाभारत का फारसी अनुवाद रज्मनामा कहलाया। परीक्षा में अकबर के अनुवाद कार्य याद रखें।

Open Question Page
Ask Friends
Question Expert General Knowledge Indian History important date of national cultural programs Class 10 Level 42

स्वच्छ पर्यटन मोबाइल ऐप किस वर्ष शुरू हुआ था?

In which year was the Swachh Paryatan mobile app launched?

Explanation opens after your attempt
Correct Answer

B. 20162016

Step 1

Concept

The Swachh Paryatan app was launched in 2016. Link it with cleanliness at tourist sites and citizen participation.

Step 2

Why this answer is correct

The correct answer is B. 2016 / 2016. The Swachh Paryatan app was launched in 2016. Link it with cleanliness at tourist sites and citizen participation.

Step 3

Exam Tip

स्वच्छ पर्यटन ऐप 2016 में शुरू हुआ था। इसे पर्यटन स्थलों की स्वच्छता और नागरिक भागीदारी से जोड़ें।

Open Question Page
Ask Friends
Question Expert Mathematics Arithmetic Progressions (AP) Word problems based on APs Class 10 Level 72

एक ऐप की आय पहले दिन (1200) रुपये है और हर अगले दिन (250) रुपये बढ़ती है। (10) दिनों की कुल आय कितनी होगी?

An app earns (1200) rupees on the first day and the income increases by (250) rupees each next day. What is the total income in (10) days?

Explanation opens after your attempt
Correct Answer

B. (23250)

Step 1

Concept

The income is \(1200,1450,1700,\ldots\) and \(S_{10}=23250\). Exam tip: add daily income as AP terms.

Step 2

Why this answer is correct

The correct answer is B. (23250). The income is \(1200,1450,1700,\ldots\) and \(S_{10}=23250\). Exam tip: add daily income as AP terms.

Step 3

Exam Tip

आय \(1200,1450,1700,\ldots\) है और \(S_{10}=23250\)। परीक्षा में दैनिक आय को ए.पी. के पदों की तरह जोड़ें।

Open Question Page
Ask Friends
Question Expert Mathematics Arithmetic Progressions (AP) Word problems based on APs Class 10 Level 71

एक ऐप की आय पहले दिन (900) रुपये है और हर अगले दिन (175) रुपये बढ़ती है। (9) दिनों की कुल आय कितनी होगी?

An app earns (900) rupees on the first day and the income increases by (175) rupees each next day. What is the total income in (9) days?

Explanation opens after your attempt
Correct Answer

C. (14400)

Step 1

Concept

The income is \(900,1075,1250,\ldots\) and \(S_9=14400\). Exam tip: add daily income as AP terms.

Step 2

Why this answer is correct

The correct answer is C. (14400). The income is \(900,1075,1250,\ldots\) and \(S_9=14400\). Exam tip: add daily income as AP terms.

Step 3

Exam Tip

आय \(900,1075,1250,\ldots\) है और \(S_9=14400\)। परीक्षा में दैनिक आय को ए.पी. के पदों की तरह जोड़ें।

Open Question Page
Ask Friends
Question Expert Mathematics Arithmetic Progressions (AP) Word problems based on APs Class 10 Level 70

एक ऐप की आय पहले दिन (250) रुपये है और हर अगले दिन (35) रुपये बढ़ती है। (11)वें दिन आय कितनी होगी?

An app earns (250) rupees on the first day and the income increases by (35) rupees each next day. What will be the income on the (11)th day?

Explanation opens after your attempt
Correct Answer

B. (600)

Step 1

Concept

The income is \(250,285,320,\ldots\) and \(a_{11}=600\). Exam tip: use the (n)th term for a particular day.

Step 2

Why this answer is correct

The correct answer is B. (600). The income is \(250,285,320,\ldots\) and \(a_{11}=600\). Exam tip: use the (n)th term for a particular day.

Step 3

Exam Tip

आय \(250,285,320,\ldots\) है और \(a_{11}=600\)। परीक्षा में किसी विशेष दिन के लिए (n)वाँ पद लगाएं।

Open Question Page
Ask Friends
Question Expert Mathematics Arithmetic Progressions (AP) Word problems based on APs Class 10 Level 70

एक ऐप पर (14) दिनों में कुल (2590) डाउनलोड हुए। यदि हर दिन डाउनलोड (12) से बढ़े तो पहले दिन कितने डाउनलोड हुए?

An app gets (2590) downloads in (14) days. If downloads increase by (12) each day then how many downloads happened on the first day?

Explanation opens after your attempt
Correct Answer

C. (107)

Step 1

Concept

Using \(S_{14}=2590\) and (d=12) gives (a=107). Exam tip: find the first day from total and increase.

Step 2

Why this answer is correct

The correct answer is C. (107). Using \(S_{14}=2590\) and (d=12) gives (a=107). Exam tip: find the first day from total and increase.

Step 3

Exam Tip

\(S_{14}=2590\) और (d=12) रखने पर (a=107) मिलता है। परीक्षा में कुल और वृद्धि से पहला दिन निकालें।

Open Question Page
Ask Friends
Question Hard Mathematics Arithmetic Progressions (AP) Word problems based on APs Class 10 Level 72

एक ऐप की आय पहले दिन (700) रुपये है और हर अगले दिन (150) रुपये बढ़ती है। (8) दिनों की कुल आय कितनी होगी?

An app earns (700) rupees on the first day and the income increases by (150) rupees each next day. What is the total income in (8) days?

Explanation opens after your attempt
Correct Answer

B. (9800)

Step 1

Concept

The income is \(700,850,1000,\ldots\) and \(S_8=9800\). Exam tip: add daily income as AP terms.

Step 2

Why this answer is correct

The correct answer is B. (9800). The income is \(700,850,1000,\ldots\) and \(S_8=9800\). Exam tip: add daily income as AP terms.

Step 3

Exam Tip

आय \(700,850,1000,\ldots\) है और \(S_8=9800\)। परीक्षा में दैनिक आय को ए.पी. के पदों की तरह जोड़ें।

Open Question Page
Ask Friends
Question Hard Mathematics Arithmetic Progressions (AP) Word problems based on APs Class 10 Level 71

एक ऐप की आय पहले दिन (500) रुपये है और हर अगले दिन (100) रुपये बढ़ती है। (10) दिनों की कुल आय कितनी होगी?

An app earns (500) rupees on the first day and the income increases by (100) rupees each next day. What is the total income in (10) days?

Explanation opens after your attempt
Correct Answer

C. (9500)

Step 1

Concept

The income is \(500,600,700,\ldots\) and \(S_{10}=9500\). Exam tip: add daily income as AP terms.

Step 2

Why this answer is correct

The correct answer is C. (9500). The income is \(500,600,700,\ldots\) and \(S_{10}=9500\). Exam tip: add daily income as AP terms.

Step 3

Exam Tip

आय \(500,600,700,\ldots\) है और \(S_{10}=9500\)। परीक्षा में दैनिक आय को ए.पी. के पदों की तरह जोड़ें।

Open Question Page
Ask Friends
Question Expert Mathematics Arithmetic Progressions (AP) Introduction to APs and common difference. Class 10 Level 62

यदि किसी समांतर श्रेणी का सामान्य अंतर (7) है और प्रत्येक पद से (12) घटाया जाए, तो नया सामान्य अंतर क्या होगा?

If an AP has common difference (7) and (12) is subtracted from every term, what is the new common difference?

Explanation opens after your attempt
Correct Answer

B. (7)

Step 1

Concept

Subtracting the same number from every term does not change the difference. In exams, treat uniform subtraction as changing only the first term.

Step 2

Why this answer is correct

The correct answer is B. (7). Subtracting the same number from every term does not change the difference. In exams, treat uniform subtraction as changing only the first term.

Step 3

Exam Tip

हर पद से समान संख्या घटाने पर अंतर नहीं बदलता। परीक्षा में समान घटाव को केवल पहला पद बदलने वाला समझें।

Open Question Page
Ask Friends
Question Expert Mathematics Arithmetic Progressions (AP) Introduction to APs and common difference. Class 10 Level 62

यदि (x,y,z) समांतर श्रेणी में हैं और प्रत्येक में (r) जोड़ा जाए, तो नए तीन पदों का सामान्य अंतर क्या होगा?

If (x,y,z) are in AP and (r) is added to each, what is the common difference of the new three terms?

Explanation opens after your attempt
Correct Answer

A. पुराना सामान्य अंतर ही रहेगाIt remains the old common difference

Step 1

Concept

Adding the same number to every term does not change consecutive differences. In exams, a uniform translation leaves the difference unchanged.

Step 2

Why this answer is correct

The correct answer is A. पुराना सामान्य अंतर ही रहेगा / It remains the old common difference. Adding the same number to every term does not change consecutive differences. In exams, a uniform translation leaves the difference unchanged.

Step 3

Exam Tip

हर पद में समान संख्या जोड़ने से लगातार अंतर नहीं बदलता। परीक्षा में समान स्थानांतरण को अंतर पर असरहीन मानें।

Open Question Page
Ask Friends
Question Hard Mathematics Polynomials Representing real numbers on the number line Class 10 Level 49

संख्या रेखा पर \(3+\sqrt{2}\) किन दो पूर्णांकों के बीच होगा?

On the number line, \(3+\sqrt{2}\) lies between which two integers?

Explanation opens after your attempt
Correct Answer

A. (4) और (5)(4) and (5)

Step 1

Concept

Since \(1<\sqrt{2}<2\), \(4<3+\sqrt{2}<5\). Adding a number shifts the interval by that amount.

Step 2

Why this answer is correct

The correct answer is A. (4) और (5) / (4) and (5). Since \(1<\sqrt{2}<2\), \(4<3+\sqrt{2}<5\). Adding a number shifts the interval by that amount.

Step 3

Exam Tip

क्योंकि \(1<\sqrt{2}<2\), इसलिए \(4<3+\sqrt{2}<5\)। जोड़ करने पर अंतराल भी उतना ही खिसकता है।

Open Question Page
Ask Friends
Question Medium Mathematics Polynomials Representing real numbers on the number line Class 10 Level 50

संख्या रेखा पर (y) ऐसा है कि (y), (-2) से (3.25) इकाई दाईं ओर है। (y) का मान क्या है?

On the number line, (y) is (3.25) units to the right of (-2). What is (y)?

Explanation opens after your attempt
Correct Answer

A. (1.25)

Step 1

Concept

Moving right gives (y=-2+3.25=1.25). In exams, add or subtract according to direction.

Step 2

Why this answer is correct

The correct answer is A. (1.25). Moving right gives (y=-2+3.25=1.25). In exams, add or subtract according to direction.

Step 3

Exam Tip

दाईं ओर जाने पर (y=-2+3.25=1.25) है। परीक्षा में दिशा के अनुसार संख्या जोड़ें या घटाएं।

Open Question Page
Ask Friends
Question Medium Mathematics Polynomials Representing real numbers on the number line Class 10 Level 49

संख्या रेखा पर \(1+\sqrt{2}\) किस दो पूर्णांकों के बीच होगा?

Between which two integers will \(1+\sqrt{2}\) lie on the number line?

Explanation opens after your attempt
Correct Answer

B. (2) और (3)(2) and (3)

Step 1

Concept

\(\sqrt{2}\) is about (1.41), so \(1+\sqrt{2}\) is about (2.41). It lies between (2) and (3).

Step 2

Why this answer is correct

The correct answer is B. (2) और (3) / (2) and (3). \(\sqrt{2}\) is about (1.41), so \(1+\sqrt{2}\) is about (2.41). It lies between (2) and (3).

Step 3

Exam Tip

\(\sqrt{2}\) लगभग (1.41) है इसलिए \(1+\sqrt{2}\) लगभग (2.41) होगा। यह (2) और (3) के बीच है।

Open Question Page
Ask Friends
Question Expert Science Chemical Substances – Nature and Behaviour Acids, Bases, and Salts Class 10 Level 13

सोडियम कार्बोनेट के जलीय विलयन में फिनॉल्फ्थलीन डालने पर गुलाबी रंग आता है। इसका सबसे उचित कारण क्या है?

Phenolphthalein turns pink in an aqueous solution of sodium carbonate. What is the most appropriate reason?

Explanation opens after your attempt
Correct Answer

A. सोडियम कार्बोनेट का विलयन क्षारीय होता हैSodium carbonate solution is basic

Step 1

Concept

Sodium carbonate is a salt of a strong base and a weak acid.

Step 2

Why this answer is correct

Its aqueous solution is basic.

Step 3

Exam Tip

For salts, judge the nature by comparing the strengths of the parent acid and base. चरण 1: सोडियम कार्बोनेट प्रबल क्षार और दुर्बल अम्ल से बना लवण है। चरण 2: इसका जलीय विलयन क्षारीय प्रकृति दिखाता है। चरण 3: ऐसे लवणों में मूल अम्ल और मूल क्षार की शक्ति देखकर प्रकृति तय करें।

Open Question Page
Ask Friends