Class 9 | Measurement of Matter

Flash Card

............is a composite radical.

1/25

The symbol of Avogadro’s number is ...............

2/25

The formula to calculate density is:

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What is the density of water?

4/25

............ g of water make 1 mole of water.

5/25

Which instrument is used to measure atmospheric pressure?

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The mass of an atom is concentrated in its........... .

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Molecular formula of sodium sulphate is.................

8/25

Which of the following materials expands the most when heated?

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What is the SI unit of length?

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.............. is a bicarbonate radical

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What is the SI unit of density?

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The SI unit of volume is:

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What is the SI unit of mass?

14/25

Which of the following statements about density is correct?

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Which of the following materials has the highest density?

16/25

Which of the following is a derived unit?

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The valency of element with electronic configuration ........... is 2.

18/25

A mole of any substance stands for ............... molecules.

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The unit Dalton is used to express................. .

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Which of the following instruments is used to measure length with high precision?

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What is the SI unit of temperature?

22/25

Which instrument is used to measure mass?

23/25

Which of the following is used to measure the volume of irregularly shaped objects?

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Iron (Fe) exhibits the variable valencies as.............. .

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