Question

Match the upper limit concentrations of the pollutants given in column I with column II and mark the appropriate choice.

Column I	Column II
(A) Lead	(i) 500 ppm
(B) Sulphate	(ii) 10 ppm
(C) Nitrate	(iii) 50 ppb
(D) Fluoride	(iv) 50 ppm

• A. (A)$\rightarrow$ (ii), (A) $\rightarrow$ (iii),(A) $\rightarrow$ (i), (A) $\rightarrow$ (iv)
• B. (B)$\rightarrow$ (iii), (B) $\rightarrow$ (i),(B) $\rightarrow$ (iv), (B) $\rightarrow$ (ii)
• C. (C)$\rightarrow$ (i), (C) $\rightarrow$ (iv),(C) $\rightarrow$ (iii), (C) $\rightarrow$ (ii)
• D. (D)$\rightarrow$ (iv), (D) $\rightarrow$ (ii),(D) $\rightarrow$ (iii), (D) $\rightarrow$ (i)

Answer 1

Answer: (B)

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

Answer 2

: (1)$\rightarrow$ (iii), (2)$\rightarrow$ (i), (3) $\rightarrow$ (iv),(4) $\rightarrow$ (ii)