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Assertion (A): Calmel is a chemical comp...

Assertion (A): Calmel is a chemical compound whereas brass is a mixture.
Reason (R ): Calomel always contains 5.6 times as much mercury as chlorine by weight. Brass can be made with widely different ratios of copper and zine.

A

If both (A) and (R ) are correct and (R ) is the correct explantion for (A)

B

If both (A) and (R ) are correct but (R ) is not the correct explantion for (A)

C

If (A) is correct but (R ) is incorrect.

D

If (A) and (R ) are incorrect.

Text Solution

Verified by Experts

The correct Answer is:
A
Calomel is `Hg_(2)Cl_(2)`. (Atomic weight of `Hg` and `Cl` are `= 220.59` and `35.5 g`, respectively)
Ratio of weights of `Hg` and `Cl = (2 xx 200.59)/(2 xx 35.5) = 5.6`
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