Select all combinations of chemical reagents which make buffer solution(s). NH3 & KOH HCN & HCl...

Select all combinations of chemical reagents which make buffer solution(s).

		NH₃ & KOH
		HCN & HCl
		HCl & HCN
		KCN & NaOH
		KOH & HBr
		HCN & KCN
		HCl & NaOH

Expert Solution

STEP 1 : Buffer solution is an aqueous solution of weak acid and its conjugate base or it can be of weak base and its conjugate acid.

STEP 2 : check the option

Hence, only HCN + KCN will make acidic buffer solution.

queen_honey_blossom answered 3 years ago

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