English Medium कक्षा ९ - CBSE Question Bank Solutions for Science

What name is given to those elements which are neither good conductors of electricity like copper nor insulators like sulphur ?

What name is given to those elements which are neither good conductors of electricity like copper nor insulators like sulphur ?

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An element is made up of only one kind of ........

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An element is made up of only one kind of ........

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Brass is an alloy which is considered a ..............

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Brass is an alloy which is considered a ..............

The three important metalloids are.............................. and ..........................

The three important metalloids are.............................. and ..........................

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The elements which are sonorous are called ..........................

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The elements which are sonorous are called ..........................

Classify the following into elements and compounds :

1. H₂O
2. He
3. Cl₂
4. CO
5. Co

Classify the following into elements and compounds :

1. H₂O
2. He
3. Cl₂
4. CO
5. Co

Classify the following as elements or compounds :
Iron, Iron sulphide, Sulphur, Chalk, Washing soda, Sodium, Carbon, Urea

Classify the following as elements or compounds :
Iron, Iron sulphide, Sulphur, Chalk, Washing soda, Sodium, Carbon, Urea

What elements do the following compounds contain ?

Sugar, Common salt

What elements do the following compounds contain ?

Sugar, Common salt

What are pure substances ? Give two examples of pure substances.

What are pure substances ? Give two examples of pure substances.

What are the two types of pure substances? Give one example of each type.

What are the two types of pure substances? Give one example of each type.