Question

A metal powder was added to dil. HCl and dil. NaOH
solutions taken in separate test tubes. On making the
contents renct in both the test tubes, hydrogen gas was
formed in both the cases. The metal used will be
(a) Cu
(b) zn
(c) Fe
(d) pb
​

Answer 1

Answer:

Cu

is the right answer

Answer 2

ANSWER: (C) Zn

REASON: It is an AMPHOTERIC metal and has both properties, of metal as well as non metals

2HCl + Zn --------> ZnCl2 + H2

2NaOH + Zn ----------> Na2ZnO2 + H2