Question

Mohan prepared lime water and next month used it for the experiment showing CO2 is evolved in the process of respiration
i) White precipitate is formed
ii)White precipitate is not formed
iii)Lime water must be fresh
iv) Lime water can be used anytime
a.(ii)is correct
b.(ii) and (iii)are correct
c.(i) and(iv) are correct
d.(ii) and (iv) are correct

Answer 1

option c is the correct because

Ca(OH)2(aq) + CO2(g) → CaCO3(s) + H2O and it seems milky

Answer 2

Answer:

During resting period of one month white precipitate is formed. But lime water can be used anytime.

Explanation:

For the given question option C is correct.

A white precipitate is formed during resting period of lime water but when one mixes it, it gains the original nature.

So, lime water can be used at any time in an experiment.