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Chemistry CBSE Live product
Class 10 (2026-27)
Acids, bases and salts
Annual Revision I
7.
Chemical reactions of acids and based
Question:
2
m.
Go through the following question and provide the answer:
Gas X reacts with solution Y forming compound Z, which appears as milky white suspension in water. Gas X is used as a fire extinguisher.
Identify X, Y, and Z.
i. X is
Sulphur dioxide
Hydrogen
Oxygen
Carbon dioxide
ii. Y is
Calcium oxide
Potassium hydroxide
Sodium hydroxide
Calcium hydroxide
iii. Z is
Sodium carbonate
Calcium chloride
Sodium sulphate
Calcium carbonate
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