NH4CN is a salt of weak acid HCN (Ka = 6.2 × 10-10) and a weak base NH4OH (Kb = 1.8 × 10-5). A one molar solution of NH4CN will be

Question

NH4CN is a salt of weak acid HCN (Ka = 6.2 × 10-10) and a weak base NH4OH (Kb = 1.8 × 10-5). A one molar solution of NH4CN will be (A) neutral (B) strongly acidic (C) strongly basic (D) weakly basic

Tardigrade Admin · Accepted Answer

Since Kb > Ka, the solution will be slightly basic.

Q. $N H_{4} CN$ is a salt of weak acid $H CN (K_{a} = 6.2 \times 1 0^{- 10})$ and a weak base $N H_{4} O H (K_{b} = 1.8 \times 1 0^{- 5})$ . A one molar solution of $N H_{4} CN$ will be

neutral

strongly acidic

strongly basic

weakly basic

Since $K_{b} > K_{a}$ , the solution will be slightly basic.

Q. NH4​CN is a salt of weak acid HCN(Ka​=6.2×10−10) and a weak base NH4​OH(Kb​=1.8×10−5). A one molar solution of NH4​CN will be