Class 11 Chemistry - Some Basic Concepts of Chemistry - Laws of chemical combination Easy Quiz

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पदार्थ का रासायनिक वर्गीकरण किस आधार पर किया जाता है?

Chemical classification of matter is done on which basis?

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Correct Answer

C. संयोजनComposition

Step 1

Concept

Chemical classification is based on composition. It includes pure substances and mixtures.

Step 2

Why this answer is correct

The correct answer is C. संयोजन / Composition. Chemical classification is based on composition. It includes pure substances and mixtures.

Step 3

Exam Tip

रासायनिक वर्गीकरण composition पर आधारित होता है। इसमें pure substances और mixtures शामिल हैं।

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रासायनिक वर्गीकरण में पदार्थ को मुख्यतः किन दो भागों में बाँटा जाता है?

In chemical classification matter is mainly divided into which two parts?

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Correct Answer

D. शुद्ध पदार्थ और मिश्रणPure substance and mixture

Step 1

Concept

On the basis of composition matter is divided into pure substance and mixture. This is basic classification.

Step 2

Why this answer is correct

The correct answer is D. शुद्ध पदार्थ और मिश्रण / Pure substance and mixture. On the basis of composition matter is divided into pure substance and mixture. This is basic classification.

Step 3

Exam Tip

Composition के आधार पर पदार्थ pure substance और mixture में बाँटा जाता है। यह basic classification है।

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मिश्रण की मुख्य विशेषता क्या है?

What is the main characteristic of a mixture?

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B. दो या अधिक पदार्थों का भौतिक रूप से मिला होनाPhysical combination of two or more substances

Step 1

Concept

In a mixture components are physically combined. Their proportion can vary.

Step 2

Why this answer is correct

The correct answer is B. दो या अधिक पदार्थों का भौतिक रूप से मिला होना / Physical combination of two or more substances. In a mixture components are physically combined. Their proportion can vary.

Step 3

Exam Tip

मिश्रण में components भौतिक रूप से मिले होते हैं। उनका अनुपात बदल सकता है।

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यौगिक किसे कहते हैं?

What is a compound?

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C. दो या अधिक तत्वों का निश्चित अनुपात में रासायनिक संयोजनChemical combination of two or more elements in fixed ratio

Step 1

Concept

In a compound elements are chemically combined in fixed ratio. Its composition is fixed.

Step 2

Why this answer is correct

The correct answer is C. दो या अधिक तत्वों का निश्चित अनुपात में रासायनिक संयोजन / Chemical combination of two or more elements in fixed ratio. In a compound elements are chemically combined in fixed ratio. Its composition is fixed.

Step 3

Exam Tip

यौगिक में elements निश्चित अनुपात में chemically combined होते हैं। इसका composition fixed होता है।

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यौगिक के components को अलग करने के लिए सामान्यतः क्या चाहिए?

What is generally needed to separate components of a compound?

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Correct Answer

D. रासायनिक विधिChemical method

Step 1

Concept

In a compound elements are joined by chemical bonds. Therefore chemical method is needed for separation.

Step 2

Why this answer is correct

The correct answer is D. रासायनिक विधि / Chemical method. In a compound elements are joined by chemical bonds. Therefore chemical method is needed for separation.

Step 3

Exam Tip

यौगिक में elements chemical bonds से जुड़े होते हैं। इसलिए separation के लिए chemical method चाहिए।

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