Flash Card
............is a composite radical.
The symbol of Avogadro’s number is ...............
The formula to calculate density is:
What is the density of water?
............ g of water make 1 mole of water.
Which instrument is used to measure atmospheric pressure?
The mass of an atom is concentrated in its........... .
Molecular formula of sodium sulphate is.................
Which of the following materials expands the most when heated?
What is the SI unit of length?
.............. is a bicarbonate radical
What is the SI unit of density?
The SI unit of volume is:
What is the SI unit of mass?
Which of the following statements about density is correct?
Which of the following materials has the highest density?
Which of the following is a derived unit?
The valency of element with electronic configuration ........... is 2.
A mole of any substance stands for ............... molecules.
The unit Dalton is used to express................. .
Which of the following instruments is used to measure length with high precision?
What is the SI unit of temperature?
Which instrument is used to measure mass?
Which of the following is used to measure the volume of irregularly shaped objects?
Iron (Fe) exhibits the variable valencies as.............. .
