Statement-1 : In the combustion of ethane, limiting reactant is ethane
Statement-2 : Oxygen in air is always present in excess.

Statement-1 : Combustion or burning takes place only in the presence of oxygen. Statement-2: Oxygen is supporter for combustion.

In each of the following question, an Assertion (A) is following by a corresponding Reason (R ). Use the following keys to choose the appropriate answer. Assertion : In a combustion reaction in the air, oxygen is the limiting reactant. Reason : Oxygen is present in limited amount (only21%) in the air.

Statement-1: Most of the combustion reacton are exothermic. Because Statement-2: Products are more stable than reactants in exothermic process.

Combustion of 2.24 its ethane at STP requires

Statement-2 : 1,1- dichloroethane on treatment with aq KOH yield ethanal Statement -2 : Ethylene dichloride is a unsaturated compound.

Statement-2 : 1,1- dichloroethane on treatment with aq KOH yield ethanal Statement -2 : Ethylene dichloride is a unsaturated compound.