JEE PYQ: S Block Elements Question 35
Question 35 - 2019 (11 Jan Shift 2)
Match the following items in column I with the corresponding items in column II.
Column-I: (i) $\text{Na}_2\text{CO}_3 \cdot 10\text{H}_2\text{O}$ (ii) $\text{Mg(HCO}_3)_2$ (iii) NaOH (iv) $\text{Ca}_3\text{Al}_2\text{O}_6$
Column-II: (A) Portland cement ingredient (B) Castner-Kellner process (C) Solvay process (D) Temporary hardness
(a) (i)→(B); (ii)→(C); (iii)→(A); (iv)→(D) (b) (i)→(C); (ii)→(B); (iii)→(D); (iv)→(A) (c) (i)→(D); (ii)→(A); (iii)→(B); (iv)→(C) (d) (i)→(C); (ii)→(D); (iii)→(B); (iv)→(A)
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Answer: (d)
Solution
(i) $\text{Na}_2\text{CO}_3 \cdot 10\text{H}_2\text{O}$ → Solvay process (C). (ii) $\text{Mg(HCO}_3)_2$ → Temporary hardness (D). (iii) NaOH → Castner-Kellner process (B). (iv) $\text{Ca}_3\text{Al}_2\text{O}_6$ → Portland cement ingredient (A).
BETA
