# Please give the answer which is mention in the page: Q 38. The reaction H2+CI2     2HCI is a- (A) Decomposition reaction. (B) Combination reaction. (C) Double displacement reaction. (D) Displacement reaction. Q 39 Which of the following is a combustion react- (A) Boilding of water. (B) Melting of wax (C) Burning of petrol. (D) None of these.

The solution is as follows:

The correct option is (B) Combination reaction.

The reaction is as follows:

H2(g) + Cl2(g) $\to$2 HCl(g)