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

Which instrument is used to measure atmospheric pressure?

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

The formula to calculate density is:

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

Which of the following materials expands the most when heated?

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

Which of the following materials has the highest density?

What is the density of water?

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

What is the SI unit of mass?

Which instrument is used to measure mass?

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

Which of the following statements about density is correct?

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

What is the SI unit of length?

Which of the following is a derived unit?

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

What is the SI unit of density?

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

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

What is the SI unit of temperature?

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

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

The SI unit of volume is: