Question

Match the column

Column - I	Column - II
(A) K+ Ions	(P) Thermonuclear reactions
(B) KCl	(Q) Sodium-potassium pump
(C) Mg	(R) Absorbent of CO2
(D) KOH	(S) Fertiliser

(1) A → Q; B → S; C → R, D → P 

(2) A → P; B → Q; C → S; D → R 

(3) A → Q; B → S; C → P, D → R 

(4) A → P; B → Q; C → R; D → S

Answer 1

(3) A → Q; B → S; C → P, D → R 

K⁺ : Sodium-potassium pump 

KCl : Fertiliser 

Mg : Used in thermonuclear reactions 

KOH : Absorber of CO₂