Chemistry, asked by rahulwk9926, 1 year ago

A brown substance x on heating in air forms a substance y when hydrogen gas is passed over heated y it again changes back into x related questions

Answers

Answered by roshankumar9937

1

Explanation:

Accepted Answer: The brown substance' X' is copper .When it is heated copper oxide is formed . The reaction is as follows.It is a combination reaction. If hydrogen gas is passed over heated copper oxide (CuO), the black coating on the surface turns brown as the reverse reaction takes place and copper is obtained.

Answered by gurdeepsheoran0020

1

Answer:when it burns give compound y

Explanation:hydrogen is x

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