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salt amount MCQ Questions for Class 9

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4 questions tagged with salt amount.

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

एक छात्र अलग मात्रा में नमक मिलाकर पानी का क्वथनांक मापता है। नमक की मात्रा क्या है?

A student adds different amounts of salt and measures the boiling point of water. What is the amount of salt?

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Correct Answer

B. स्वतंत्र चरIndependent variable

Step 1

Concept

The amount of salt is changed by the experimenter so it is the independent variable. In exams identify the changed amount.

Step 2

Why this answer is correct

The correct answer is B. स्वतंत्र चर / Independent variable. The amount of salt is changed by the experimenter so it is the independent variable. In exams identify the changed amount.

Step 3

Exam Tip

नमक की मात्रा प्रयोगकर्ता बदलता है इसलिए यह स्वतंत्र चर है। परीक्षा में बदली गई मात्रा को पहचानें।

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Question 2/4 Medium Science Exploration: Entering the World of Secondary Science Variables in an experiment Class 9 Level 10

यदि हर परीक्षण में अलग मात्रा में नमक लिया जाए तो प्रयोग पर क्या प्रभाव पड़ेगा?

What effect will using a different amount of salt in every trial have on the experiment?

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Correct Answer

D. नमक की मात्रा परिणाम में भ्रम उत्पन्न करेगीSalt amount will confuse the result

Step 1

Concept

Salt amount also affects dissolving time. Therefore it must be kept the same.

Step 2

Why this answer is correct

The correct answer is D. नमक की मात्रा परिणाम में भ्रम उत्पन्न करेगी / Salt amount will confuse the result. Salt amount also affects dissolving time. Therefore it must be kept the same.

Step 3

Exam Tip

नमक की मात्रा भी घुलने के समय को प्रभावित करती है। इसलिए इसे समान रखना जरूरी है।

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Question 3/4 Easy Science Exploration: Entering the World of Secondary Science Variables in an experiment Class 9 Level 11

एक छात्र अलग मात्रा में नमक मिलाकर पानी के क्वथन समय को मापता है। नमक की मात्रा कौन सा चर है?

A student adds different amounts of salt and measures the boiling time of water. What type of variable is the amount of salt?

Explanation opens after your attempt
Correct Answer

C. स्वतंत्र चरIndependent variable

Step 1

Concept

The amount of salt is deliberately changed. Therefore it is the independent variable.

Step 2

Why this answer is correct

The correct answer is C. स्वतंत्र चर / Independent variable. The amount of salt is deliberately changed. Therefore it is the independent variable.

Step 3

Exam Tip

नमक की मात्रा जानबूझकर बदली जाती है। इसलिए यह स्वतंत्र चर है।

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Question 4/4 Easy Science Exploration: Entering the World of Secondary Science Hypothesis and experimentation Class 9 Level 7

यदि परिकल्पना है कि अधिक नमक मिलाने से जल का क्वथनांक बढ़ेगा तो स्वतंत्र चर क्या होगा?

If the hypothesis states that adding more salt will increase the boiling point of water what will be the independent variable?

Explanation opens after your attempt
Correct Answer

A. नमक की मात्राAmount of salt

Step 1

Concept

The deliberately changed amount of salt is the independent variable. In exams identify the changed factor.

Step 2

Why this answer is correct

The correct answer is A. नमक की मात्रा / Amount of salt. The deliberately changed amount of salt is the independent variable. In exams identify the changed factor.

Step 3

Exam Tip

जानबूझकर बदली गई नमक की मात्रा स्वतंत्र चर है। परीक्षा में बदले गए कारक को पहचानें।

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