Ts Eamcet
Hydrogen And Its Compounds
TS EAMCET 2020 (Online) 11th September Evening Shift
MCQ+1 / -02020
Dihydrogen can be prepared by which of the following reactions.
(I) Reaction of granulated Zn with dil. HCl
(II) Reaction of Zn with $a q . \mathrm{NaOH}$
(III) By heating calcium hydrogen carbonate