MHT CET · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

Which among the following is \(\underline{\text { NOT }}\) a mineral of chlorine?

A Horn silver
B Cryolite
C Carnalite
D Sylvine

Verified Solution

Answer & Solution

Correct Answer

(B) Cryolite

Step-by-step Solution

Detailed explanation

Cl occurs commonly both in the earth's crust and seawater.
the most common compound of chlorine in seawater is \(\mathrm{NaCl}\) and minimum amount of \(\mathrm{KCl}\) is also occur in seawater.
the most mineral of \(\mathrm{Cl}\) are (Rocksalt) \(\mathrm{NaCl}\), (Sylvine) \(\mathrm{KCl}\) and(carnallite)
\(\mathrm{KClMgCl}_{2}\). ( \(\mathrm{Na}_{3} \mathrm{AlF}_{6}\) ) Cryolite does not contain chlorine.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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