AP EAMCET · Chemistry · Hydrogen
Which of the following are non-metal displacement reactions?
(A) \(\mathrm{Ca}(s)+2 \mathrm{H}_2 \mathrm{O}(l) \longrightarrow \mathrm{Ca}(\mathrm{OH})_2(a q)+\mathrm{H}_2(g)\)
(B) \(\mathrm{V}_2 \mathrm{O}_5(s)+5 \mathrm{Ca}(s) \stackrel{\Delta}{\longrightarrow} 2 \mathrm{~V}(s)+5 \mathrm{CaO}(s)\)
(C) \(2 \mathrm{Fe}(s)+3 \mathrm{H}_2 \mathrm{O}(l) \stackrel{\Delta}{\longrightarrow} \mathrm{Fe}_2 \mathrm{O}_3(s)+3 \mathrm{H}_2(g)\)
(D) \(\mathrm{Cr}_2 \mathrm{O}_3(s)+2 \mathrm{Al}(s) \stackrel{\Delta}{\longrightarrow} \mathrm{Al}_2 \mathrm{O}_3(s)+2 \mathrm{Cr}(s)\)
- A A, B, C, D
- B B, C only
- C C, D only
- D A, C only
Answer & Solution
Correct Answer
(D) A, C only
Step-by-step Solution
Detailed explanation
Reactions given in options (A) and (C) are hydrolysis reaction and not metal displacement reactions as in these cases there is only one metal present in the reaction.…
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