On adding acetic acid to sodium hydrogen carbonate in a test tube, a student observed :

no reaction

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a colourless gas with pungent smell

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bubbles of a colourless and odourless gas

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a strong smell of vinegar

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Solution

The correct option is C bubbles of a colourless and odourless gas
The reaction between baking soda (sodium bicarbonate) and vinegar (dilute acetic acid) generates carbon dioxide gas which is a colorless and odorless gas. Hence, on adding acetic acid to sodium hydrogen carbonate in a test tube, bubbles of a colorless and odorless gas is observed.

Option C is correct.

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Similar questions

A student takes $N a_{2} C O_{3}$ powder in a test tube and pours some drops of acetic acid over it. He observes:

Q. When you add a few drops of acetic acid to a testube containing sodium bicarbonate powder, which one of the following is your observation?
(a) No reaction takes place.
(b) A colourless gas with pungent smell is released with brisk effervescence.
(c) A brown coloured gas is released with brisk effervescence.
(d) Formation of bubbles of a colourless and odourless gas.

Q. Acetic acid is heated with

N a_{2} C O_{3}

in a test tube. A colourless and odourless gas (X) is evolved. The gas turns lime water milky. Identify X.

Q. Four students observed the colour and odour of acetic acid and its reaction with sodium hydrogencarbonate. They tabulated their observations as given below.

Student	Colour of acetic acid	Odour of acetic acid	Action with sodium hydrogencarbonate
A B C D	blue colourless light green light brown	fruity smell of vinegar odourless rotten eggs	gas evolves without bubbles effervescence gas evolves without bubbles effervescence

The correct set of observation is that of student:
(1) A
(2) B
(3) C
(4) D

A dilute solution of sodium carbonate was added to two test tubes - one containing dilute $H C l$ (A) and the other containing dilute $N a O H$ (B). The correct observation was

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