Question

31.
a. A metal compound 'X' reacts with dil. H,so, to produce
effervescence. The gas evolved extinguishes a burning candle. If one
of the compounds formed is calcium sulphate, then what is 'X' and
the gas evolved?
Also, write a balanced chemical equation for the reaction which
occurred.
b.
i. Name one antacid. How does it help to relieve indigestion in
stomach?
ii. A farmer treats the soil with quicklime or calcium carbonate.
What is the nature of soil? Why does the farmer treat the soil
with quicklime?
and this question to answer
please send the instragram I'd.​

Answer 1

Answer:

a) X ----- is CaCO3

gas ------ CO2

BALANCE EQUATION---------- CaCO3+ H2SO4----------> CASO4 + H2O+ CO2

Explanation:

now

b). (I) one antacid can be NAHCO3 ( BAKING SODA) OR maybe MILK OF MAGNESIA (Mg(OH)2)

antacid are actually mild bases which reacts with excessive acid in stomach and neutralise them and hence give us relief

Answer 2

X compound is ——- calcium carbonate.
CO2 carbon dioxide gas is evolved

Antacid- Magnesium hydroxide
By using magnesium hydroxide neutralise the excess presence of hydrochloric acid.

Soil is generally acidic in nature due to the pressence of fertilisers and pesticides in it . So the farmers treat soil with quicklime or calcium carbonate to neutralise the acidity.

The soil are acidic in nature. Farmer treat the soil with quicklime to neutralise the acidity in the soil.