Which instrument is used to measure mass?

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

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

What is the SI unit of mass?

What is the SI unit of length?

Which instrument is used to measure atmospheric pressure?

The formula to calculate density is:

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

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

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

What is the SI unit of temperature?

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

What is the SI unit of density?

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

Which of the following statements about density is correct?

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

Which of the following is a derived unit?

Which of the following materials expands the most when heated?

What is the density of water?

Which of the following materials has the highest density?

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

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

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

The SI unit of volume is:

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