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The following salts will produce a gas on reacting with hydrochloric acid except

The following salts will produce a gas on reacting with hydrochloric acid except
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A CuSO4
  • B CaCO3
  • C FeS
  • D Na2SO3
  • E K2CO3
Correct Answer: Option A
Explanation:

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