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1. What is the Ionization Constant of Nitrous Acid ($$HNO_2$$)?
(A): $$1.5 \times 10^{-4}$$
(B): $$4.5 \times 10^{-4}$$
(C): $$3.8 \times 10^{-4}$$
(D): $$2.8 \times 10^{-4}$$
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RPF 10 Jan 2019
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