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Factors Affecting Alpha

Assertion :Io...

Question

Assertion :Ions in 5th analytical group of cations form carbonates that are insoluble in water. Reason: The solution used for testing 5th group cations is either neutral or highly acidic.

A

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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B

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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C

Assertion is correct but Reason is incorrect

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D

Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
Ions in 5th analytical group of cations form $c a r b o n a t e s$ that are insoluble in water. The reagent usually used is ${(N H_{4})}_{2} C O_{3}$ (at around $0.2 M$ ), with a neutral or slightly basic $p H$ .
Most ions in 5th group are $B a^{+ 2}, C a^{+ 2}, S r^{+ 2} .$

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(a) Assertion and reason both are correct and reason is correct explanation of assertion.
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