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Question
Match the chemical reaction given in column I with the name of the gas evolved mentioned in column II and choose the correct option.
| Column I | Column II |
| (p) CuCl2 + H2SO4 | (i) H2S gas evolved |
| (q) Mg + HCl | (ii) H2 gas evolved |
| (r) NaHCO3 + HCl | (iii) CO2 gas evolved |
| (s) FeS + HCl | (iv) HCl gas evolved |
Options
(p) - (iv), (q) - (ii), (r) - (iii), (s) - (i)
(p) - (iii), (q) - (i), (r) - (ii), (s) - (iv)
(p) - (iii), (q) - (i), (r) - (iv), (s) - (ii)
(p) - (iv), (q) - (i), (r) - (iii), (s) - (ii)
MCQ
Match the Columns
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Solution
(p) - (iv), (q) - (ii), (r) - (iii), (s) - (i)
Explanation:
| Column I | Column II |
| (p) CuCl2 + H2SO4 | (iv) HCl gas evolved |
| (q) Mg + HCl | (ii) H2 gas evolved |
| (r) NaHCO3 + HCl | (iii) CO2 gas evolved |
| (s) FeS + HCl | (i) H2S gas evolved |
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