Assertion (A): Diazonium salts are stored at room temperature in the form of fluoroborates.
Reason (R): Benzene diazonium fluoroborate is water soluble and stable at room temperature.

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(A) is true but (R) is false

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are false

Both (A) and (R) are true and (R) is not the correct explanation of (A)

answer is C.

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Detailed Solution

Properties of diazonium salts,

They are ionic in nature.

They are water soluble (except benzene diazonium fluoroborate).

They are colourless crystalline solids.

It is important to note that benzene diazonium fluoroborate is stable at room temperature that’s why diazonium salts are stored at room temperature in the form of fluoroborates.

Thus, the assertion is true but the reason is false.

Hence, option (C) is correct.

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