Language of chemistry CLASS-6 mcq

In which chemical reaction colour changes?

• Change in state

• Change in colour

• Evolution of gas

• None of these

The reaction in which heat is absorbed is called ___________.

Substances that take part in a chemical reaction are called__________.

• Reactant

• Product

Solid state is indicated by the symbol that is______

• 'g'

• 'l'

• 'aq'

• 's'

Who is the British chemist, noticed that motion could be cause a chemical reaction?

• John Dalton

• J.J Thompson

• John Walker

• Leucippus

The equation of chemical reaction is obtained is called as_________.

Which of the following is a balanced equation?

• H2+3O2-------->4H2O

• C+2O2---------->CO2

• Fe+3O2-------->2Fe2O3

• None of these