Question

burning candle is brought near each of the following test tube, in which of t
following candle will get extinguished?
Sem ManCO
11
CILCOOM
CH.COM
d. I and II
b. II and III
c. 1 and 2​

Answer 1

Answer:

option b

Explanation:

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Answer 2

Answer:

Acetic acid reacts metal carbonates and metal hydrogen carbonates to produce CO2 gas which extinguishes burning matchstick.

Explanation:

Acetic acid reacts with metal carbonates and metal bicarbonates to form CO2 gas, which extinguishes the burning match.

Evolved Gas is carbon dioxide gas, which has the property of turning lime water into milk. It can extinguish a burning candle or wick and dissolves in sodium hydroxide solution to form sodium carbonate, but this gas is odorless in nature.

All metal carbonates and bicarbonates react with acids to form the corresponding salt, carbon dioxide and water.

Metal carbonate + Acid → Salt + Carbon dioxide + Water

Metal bicarbonate + Acid → Salt + Carbon dioxide + Water

For example, sodium carbonate reacts with dilute hydrochloric acid as follows:

Na2CO3(s) + 2HCl(aq) → 2NaCl + CO + H2O

Sodium bicarbonate reacts with dilute hydrochloric acid as follows:

NaHCO3 + HCl(aq) → NaCl(aq) + H2O(l) + CO2(g)

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