Question

Select the
correct answer to these questions from the codes (a), (b), (c) and (d) as
given below:


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.


Assertion(A): When dilute hydrochloric acid is added slowly while
stirring to a small amount of copper oxide in a beaker, the colour of the
solution turns blue-green.


Reason(R): Basic copper oxide neutralises dilute hydrochloric acid.​

Answer 1

Answer:

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Answer 2

b) Both A and R are true, but R is not the correct explanation of the assertion.

The correct reason is:-

When Hcl reacted with CuO then CuCl2 and water is formed.... the colour was blue green because of the solution of CuCl2 in water....

The reaction is....

2HCl + CuO --> CuCl2 + H2O

( blue green)

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