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 salt S is Copper Sulphate, $C u S O_{4}$ .
When dilute Sulphuric acid $(H_{2} S O_{4})$ is reacted Copper oxide $(C u O)$ , we get Copper Sulphate $(C u S O_{4})$ .
$C u O (s) + H_{2} S O_{4} (a q) \to C u S O_{4} (a q) + H_{2} O (l)$
Copper Sulphuric Copper Water
Oxide Acid sulphate

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Q. From the list of the substances given, name the substances which you would use to prepare each of the following salts:
List of substances: copper, lead, sodium, zinc, copper oxide, lead carbonate, sodium carbonate solution, dilute hydrochloric acid, dilute nitric acid and dilute sulphuric acid.
Salts: (a) zinc sulphate (b) copper sulphate (c) sodium sulphate (d) lead sulphate.

State the inference drawn from the following observation:

Salt S is prepared by reacting dilute Sulphuric acid with Copper oxide. Identify S.

From the list of substances given, name the substance which you would use to prepare each of the following salts, named in parts (a) to (d):

The substances are Copper, Lead, Sodium, Zinc, Copper oxide, Lead carbonate solution, dilute Hydrochloric acid, dilute Nitric acid and dilute Sulphuric acid:

(b) Copper sulphate

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

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

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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 salt S is Copper Sulphate, CuSO4.When dilute Sulphuric acid H2SO4 is reacted Copper oxide CuO, we get Copper Sulphate CuSO4.CuO(s)+H2SO4(aq)→CuSO4(aq)+H2O(l)Copper Sulphuric Copper WaterOxide Acid sulphate

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

The salt S is Copper Sulphate, $C u S O_{4}$ .
When dilute Sulphuric acid $(H_{2} S O_{4})$ is reacted Copper oxide $(C u O)$ , we get Copper Sulphate $(C u S O_{4})$ .
$C u O (s) + H_{2} S O_{4} (a q) \to C u S O_{4} (a q) + H_{2} O (l)$
Copper Sulphuric Copper Water
Oxide Acid sulphate