1) CN- (aq) + HNO2 (aq) NO2- (aq) + HCN (aq) 2) CN- (aq) + HC9H7O4 (aq) HCN

HNO2

C9H7O4

NO2

CN

HC9H7O4

HCN
strongest base

intermediate base

weakest base

not a Bronsted-Lowry base

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