A student added acetic acid to test tubes I, II, III and IV containing the labeled substance and then brought a burning splinter near the mouth of each test tube.

The splinter would be extinguished when brought near the mouth of test tube:

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III

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Solution

The correct option is C
III

III test tube containing sodium hydrogen carbonate.

Acids react with sodium hydrogen carbonate to evolve carbon dioxide gas which is a non-supporter of combustion.

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A student added acetic acid to test tubes I, II, III and IV containing the labeled substance and then brought a burning splinter near the mouth of each test tube. The splinter would be extinguished when brought near the mouth of test tube:

The correct option is C III III test tube containing sodium hydrogen carbonate. Acids react with sodium hydrogen carbonate to evolve carbon dioxide gas which is a non-supporter of combustion.

A student added acetic acid to test tubes I, II, III and IV containing the labeled substance and then brought a burning splinter near the mouth of each test tube.

The splinter would be extinguished when brought near the mouth of test tube:

The correct option is C
III

III test tube containing sodium hydrogen carbonate.

Acids react with sodium hydrogen carbonate to evolve carbon dioxide gas which is a non-supporter of combustion.