State the inference drawn from the following observations:
Salt $S$ is prepared by reacting dilute sulphuric acid with copper oxide. Identify $S$ .

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Solution

The reaction is as follows:
$H_{2} S O_{4} + C u O \to C u S O_{4} + H_{2} O$
Hence, $C u S O_{4}$ is the salt S.

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Q. Fill in the blanks using the appropriate words given below :
(Sulphur dioxide, Nitrogen dioxide, Nitric oxide, Sulphuric acid)
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(ii) Hot, concentrated nitric acid reacts with copper to form ____________.

Copper does not react with conc. sulphuric acid but reacts with the dilute acid

Q. From the list of the substances given, name the substances which you would use to prepare each of the following salts:
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Q. What happens when dilute sulphuric acid reacts with a copper plate?

A, B, C and D summarize the properties of sulphuric acid depending on whether it is dilute or concentrated. Choose the property (A, B, C or D), depending on which is relevant to each of the preparations (i) to (iii):
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State the inference drawn from the following observations:Salt S is prepared by reacting dilute sulphuric acid with copper oxide. Identify S.

The reaction is as follows:H2SO4+CuO→CuSO4+H2OHence, CuSO4 is the salt S.

State the inference drawn from the following observations:
Salt $S$ is prepared by reacting dilute sulphuric acid with copper oxide. Identify $S$ .

The reaction is as follows:
$H_{2} S O_{4} + C u O \to C u S O_{4} + H_{2} O$
Hence, $C u S O_{4}$ is the salt S.