Chemistry, asked by sanikanaik32680, 5 months ago

when hydrogen gas is passed over heated copper oxide we observe ________
a) Black coating on the surface turns blue.
b) Black coating on the surface turns green.
ć) Black coating on the surface turns brown.
d) Black coating on the surface turns white.

Answers

Answered by HaiderDhelawala

1

Answer:

the correct answer is c)

Answered by PremalpreetKaur

1

Answer:

the answer is (c) Black coating on the surface turns Brown .

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