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A diazonium salt ‘X’ forms sulphuric acid as one the by product when is reacts with phosphinic acid to give benzene. Identify ‘X’.

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A diazonium salt ‘X’ forms sulphuric acid as one the by product when is reacts with phosphinic acid to give benzene. Identify ‘X’.

(a) Benzenediazonium chloride

(b) Benzenediazonium bromide

(c) Benzenediazonium hydrogensulphate

(d) Benzenediazonium fluoroborate

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The correct option is (c) Benzenediazonium hydrogensulphate

Best explanation: The H^+ ions from the aqueous solution of acid combine with the negative HSO4^– ions from the benzenediazonium hydrogensulphate to form H2SO4 (sulphuric acid) as the by product.

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