When is passed into lime water, it turns milky. When excess of
is passed, milkiness disappears because:
Reaction is reversed
is formed which is water soluble and colourless
Calcium derivative vaporise
None of these
As we have learnt,
When is passed through lime water, it turns milky due to formation of
. Upon passing excess of
through the solution, milkiness disappears due to formation of
which is soluble in water and colorless.
Hence, the correct answer is Options (2)
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