Question

which one of the following metal reacts with dil. HCL to give hydrogen gas?
i. Cu
ii. Pb
iii. Ag
iv. Hg​

Answer 1

Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?

ANSWER

Most of the metals such as Al,Cu,Fe etc. reacts with dilute acids to produce hydrogen gas but magnesium is an exception. Magnesium being an active metal liberates dihydrogen gas as it is allowed to react with dilute HCl.Thus all the given metals react with dilute acids.

Mg+2HCl→MgCl

2

+H

2

hope it help u

Cu is right ans