Question

Q. Which of the following represent a group of compounds?
A. air,water,copper sulphate
B. copper sulphate,iron sulphate,crystallied common salt.
C. ammonium chloride,rock salt,crystallied alum
D. sea water,ammonium chloride,sodium chloride

Don't spam ​

Answer 1

Answer:

Option B is correct.

Explanation:

Because copper sulphate , iron sulphide and crystallised common salt are compounds.

And it is not a Spam.

Answer 2

Answer:

Option B represents a group of compounds as it consists of three different chemical compounds: copper sulfate (CuSO4), iron sulfate (FeSO4), and crystallized common salt (NaCl).

Explanation:

These three compounds have different chemical compositions and properties and are distinct from each other. Copper sulfate is a blue-colored salt used in various industries, iron sulfate is a greenish compound used in medicine and as a reducing agent, and crystallized common salt is a white compound used as a seasoning and preservative.

In contrast, options A, C, and D do not represent groups of compounds as they contain either element (such as air) or mixtures of compounds (such as seawater).

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