Question

Effects on litmus 
aBlue litmusTurns redAcetic acid is _________ in nature.
bRed litmusDoes not change colour__________ gas in evolved when acetic acid reacts with sodium bicarbonate.
4a. Reaction with sodium bicarbonatea. Colourless and odourless gas bubbles are evolved

___________ gas is evolved when acetic acid reacts with sodium bicarbonate.

b. At first lime water turns milky, but if the gas is allowed to pass for some more time, the lime water becomes colourless again.

Medium

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