Question

14) When a black metal compound XO is heated
with a colourless gas Y2, then metal X and
another compound Y20 are formed. Metal X
is reddish brown in colour which does not react
with dilute acids at all. Gas Y can be prepared
by the action of a dilute acid on any active
metal. The compound Y2O is a liquid at room
temperature which can turn anhydrous copper
sulphate blue. What is metal X?
(1) Nickel
(2) Copper
(3) Iron
(4) Zinc​

Answer 1

Answer:

(2) Copper................