A student adds hydrochloric acid to sodium hydrogen carbonate. Which observation confirms neutralisation?

Subject: General Awareness | Topic: Science | Difficulty: MEDIUM

Options

1. (A) Turning red
2. (B) Formation of a precipitate
3. (C) Effervescence (bubbling)
4. (D) Fall in temperature

Verified Answer

Option (C): Effervescence (bubbling)

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