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Question

Question: Match the column I with column II and mark the appropriate choice. <table> <colgroup> <col style="w...

Match the column I with column II and mark the appropriate choice.

Column IColumn II
(A)Li(i)Role in biological systems
(B)K(ii)Golden yellow flame
(C)Na(iii)Photoelectric cell
(D)Cs(iv)

Carbonate decomposes

on heating

A

(A) \rightarrow (iv), (A) \rightarrow (i), (A) \rightarrow (iii), (A) \rightarrow (ii)

B

(B) \rightarrow (i), (B) \rightarrow (iii), (B) \rightarrow (ii), (B) \rightarrow (iv)

C

(C) \rightarrow (iii),(C) \rightarrow (ii), (C) \rightarrow (i), (C) \rightarrow (iv)

D

(D) \rightarrow (iv), (D) \rightarrow (i), (D) \rightarrow (ii), (D) \rightarrow (iii)

Answer

(D) \rightarrow (iv), (D) \rightarrow (i), (D) \rightarrow (ii), (D) \rightarrow (iii)

Explanation

Solution

: Li2CO3Li_{2}CO_{3} decomposes on heating K plays vital role in biological systems. Na imparts golden yellow colour to the flame. Cs is used in devising photoelectric cells.