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sugar dissolving MCQ Questions for Class 9

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4 questions tagged with sugar dissolving.

Question 1/4 Easy Science Exploration: Entering the World of Secondary Science Variables in an experiment Class 9 Level 12

चम्मच वाले प्रयोग में चीनी के घुलने का समय क्या है?

In the spoon experiment what is the time taken for sugar to dissolve?

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Correct Answer

C. आश्रित चरDependent variable

Step 1

Concept

Dissolving time is the measured result so it is the dependent variable. In exams identify the measured time.

Step 2

Why this answer is correct

The correct answer is C. आश्रित चर / Dependent variable. Dissolving time is the measured result so it is the dependent variable. In exams identify the measured time.

Step 3

Exam Tip

घुलने का समय मापा गया परिणाम है इसलिए यह आश्रित चर है। परीक्षा में मापे गए समय को पहचानें।

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Question 2/4 Easy Science Exploration: Entering the World of Secondary Science Variables in an experiment Class 9 Level 11

गर्म पानी में चीनी के घुलने की जांच में पानी का तापमान कौन सा चर है?

In an investigation of sugar dissolving in hot water what type of variable is water temperature?

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Correct Answer

A. स्वतंत्र चरIndependent variable

Step 1

Concept

Water temperature is deliberately changed. Therefore it is the independent variable.

Step 2

Why this answer is correct

The correct answer is A. स्वतंत्र चर / Independent variable. Water temperature is deliberately changed. Therefore it is the independent variable.

Step 3

Exam Tip

पानी का तापमान जानबूझकर बदला जाता है। इसलिए यह स्वतंत्र चर है।

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Question 3/4 Medium Science Exploration: Entering the World of Secondary Science Hypothesis and experimentation Class 9 Level 8

कौन सा कथन एक अच्छी वैज्ञानिक परिकल्पना का उदाहरण है?

Which statement is an example of a good scientific hypothesis?

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Correct Answer

A. यदि जल का तापमान बढ़ेगा तो चीनी तेजी से घुलेगीIf water temperature increases then sugar will dissolve faster

Step 1

Concept

The first statement gives a testable relationship between two variables. In exams identify testable if-then statements.

Step 2

Why this answer is correct

The correct answer is A. यदि जल का तापमान बढ़ेगा तो चीनी तेजी से घुलेगी / If water temperature increases then sugar will dissolve faster. The first statement gives a testable relationship between two variables. In exams identify testable if-then statements.

Step 3

Exam Tip

पहला कथन दो चरों के बीच परीक्षण योग्य संबंध बताता है। परीक्षा में यदि तब वाले जाँच योग्य कथन को पहचानें।

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Question 4/4 Easy Science Exploration: Entering the World of Secondary Science Scientific questions and observations Class 9 Level 4

किस प्रश्न में दो चीजों की तुलना की जा रही है?

Which question compares two things?

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Correct Answer

A. गर्म और ठंडे जल में चीनी कहाँ जल्दी घुलती है?In which does sugar dissolve faster hot or cold water?

Step 1

Concept

This question compares dissolving in hot and cold water. In exams identify the variables being compared.

Step 2

Why this answer is correct

The correct answer is A. गर्म और ठंडे जल में चीनी कहाँ जल्दी घुलती है? / In which does sugar dissolve faster hot or cold water?. This question compares dissolving in hot and cold water. In exams identify the variables being compared.

Step 3

Exam Tip

इस प्रश्न में गर्म और ठंडे जल में घुलने की तुलना की गई है। परीक्षा में तुलना वाले चर पहचानें।

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