Which of the following materials expands the most when heated?

The formula to calculate density is:

Which instrument is used to measure atmospheric pressure?

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

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

What is the SI unit of density?

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

Which instrument is used to measure mass?

What is the SI unit of temperature?

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

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

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

The SI unit of volume is:

What is the SI unit of length?

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

Which of the following statements about density is correct?

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

Which of the following materials has the highest density?

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

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

What is the density of water?

Which of the following is a derived unit?

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

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

What is the SI unit of mass?