A pure substance which is made up of only one kind of atom and cannot be broken into two or more simpler substances by physical or chemical means is referred to as

Which of the following non-metal is a good conductor of electricity?

According to the definition of pure substance, which of the following is a pure substance?

Which of the following elements is not a metalloid?

Balanced forces are defined as :

Unit of force is :-

When we stretch a rubber band this is example of

A force is a :

When a batsman hits the cricket ball, this is an example of:

________ is the smallest particle of the element that cannot usually exist independently and retain all its chemical properties.

Formula of Hydrogen sulphide is

Chemical name of CaO is ________

Calculate the molecular mass of HNO3

Which of the following is a compound?

At what temperature does solid ice and liquid water co-exist together?

Generally on heating, temperature of substances_____________ ?