1.

Assertion: Copper oxide in a beaker is added with dilute HCl when copper (II) chloride is formed. Reason: The colour of solution becomes brown and the copper oxide dissolves.a) Both A and R are true, and R is correct explanation of the assertion. b) Both A and R are true, but R is not the correct explanation of the assertion. c) A is true, but R is false. d) A is false, but R is true.

Answer»

(c) The colour of solution formed is blue green and copper chloride is formed.

2HCl + CuO → CuCl2 + H2O

(c)  A is true , but R is false

     CuO + HCL → CuCl+ H2O

The colour would be bluish not brown .



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