Que 1. Why is combustion of Liquefied Petroleum Gas (LPG) a chemical change? Ans. Combustion...

Que 1. Which among the following are physical or chemical changes?  (a) Evaporation of petro...

Que 1. Translate the following statements into chemical equations and balance them: (i) Lead nitr...

Que 1. Consider the chemical equation given below and answer the questions that follow: ...