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Effect on Indicators by Acids and Bases

The blue colo...

Question

The blue colour filtrate formed after reaction of $H C l$ with $C u O$ is :

A

C u C l_{2}

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B

C u C l

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C

C u C l_{3}

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D

C u C l_{4}

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Solution

The correct option is C $C u C l_{2}$
The blue coloured filtrate formed after the reaction of $H C l$ with $C u O$ is $C u C l_{2}$ .

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Similar questions

Q. Which of the following statements about the given reaction are correct?

C u O_{(} s) + 2 H C l (d i l .) \to C u C l_{2 (a q)} + H_{2} O_{(l)}

C u C l_{2}

is blue-green coloured solution.
(ii) CuO is an acidic oxide.
(iii) This is a neutralisation reaction.
(iv) CuO is a basic oxide.

Identify 'X' in the reaction: 2HCl + CuO → X + H₂O

In adding dilute HCl to copper oxide powder, the solution formed is blue-green. Identify the compound formed which gives blue green colour solution?

Q. Assertion :Concentrated aqueous solution of

C u {C l}_{2}

is green in colour. Reason: The solution contains two complex ions i.e.,

{[C u {(H_{2} O)}_{4}]}^{2 +}

{[{C u C l}_{4}]}^{2 -}

in equilibrium.

Q.
Statement I: Aniline on reaction with

N a N O_{2} / H C l

0^{o} C

followed by coupling with

β

-naphthol gives a dark blue coloured precipitate.
Statement II: The colour of the compound formed in the reaction of aniline with

N a N O_{2} / H C l

0^{o} C

followed by coupling with

β

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