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Question

Which among the following is not a homogeneous mixture?


A

solder

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B

aqueous solution of NaCl

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C

sulfur in carbon disulfide

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D

sulfur in water

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Solution

The correct option is D

sulfur in water


Explanation for the correct answer

(D) Sulfur is insoluble in water. So, it forms a heterogeneous mixture.

Explanation for Incorrect answer

(A)Solder is an alloy of tin (Sn) and lead (Pb). It is a homogeneous mixture of metals.

(B) Aqueous NaCl will dissolve in water and make a homogenous solution.

(C) When sulfur dissolves in carbon disulfide (CS2), sulfur has the property to dissolve in (CS2) and forms a homogeneous mixture.

Hence, sulfur in water is not a homogeneous mixture.


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