Which of the following metals liberate hydrog | vedclass

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(C) Metals that are more reactive than hydrogen (i.e.,have a negative standard reduction potential) can displace hydrogen from dilute acids.$Fe$ and $

Vedclass · Accepted Answer

$Al$

Vedclass · Answer

(C) Metals that are more reactive than hydrogen (i.e.,have a negative standard reduction potential) can displace hydrogen from dilute acids.$Fe$ and $Al$ are both more reactive than hydrogen.However,in the context of standard textbook questions where a single choice is required,$Al$ is a classic example of a metal that reacts with dilute $H_2SO_4$ to liberate $H_2$ gas.Reaction: $2Al(s) + 3H_2SO_4(dil) 	o Al_2(SO_4)_3(aq) + 3H_2(g) \uparrow$.

List-$I$	List-$II$
$(a)$ $Li$	$(i)$ photoelectric cell
$(b)$ $Na$	$(ii)$ absorbent of $CO_{2}$
$(c)$ $K$	$(iii)$ coolant in fast breeder nuclear reactor
$(d)$ $Cs$	$(iv)$ treatment of cancer
	$(v)$ bearings for motor engines

Which of the following metals liberate hydrogen gas on reaction with dilute $H_2SO_4$?

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