The following salts will produce a gas on reacting with hydrochloric acid except? by Sunday | Aug 22 | Chemistry WAEC | 0 comments A. CuSO4 B. CaCO3 C. FeS D. Na2SO3 E. K2CO3 Correct Answer: Option A – CuSO4 Users Also Read These:A colourless gas with a pungent smell is evolved…A hydrogen chloride gas reacted with oxygen gas to…Which of the following substances will not produce…A solution which on treatment with hydrochloric acid…The salt that reacts with dilute hydrochloric acid…