question_answer

Match column I with column II and choose the correct answer from the codes given below.

Column I	Column II
P. Limestone is heated.	(i)  Electrolysis
Q. Magnesium wire is burnt in air.	(ii) Decomposition reaction
R. White ppt. of silver chloride is formed when silver nitrate is added to sodium chloride solution.	(iii) Combination reaction
S. Electricity is passed through acidulated water.	(iv) Double displacement reaction

A) P-(iv), Q-(ii), R-(i), S-(iii)

B) P-(ii), Q-(iii), R-(iv), S-(i)

C) P-(ii), Q-(iv), R-(iii), S-(i)

D) P-(i), Q-(ii), R-(iv), S-(iii)