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Chemistry

Nita's father bought a basket of ripe mangoes. While opening it she found a small sachet containing a white crystalline powder along with the mangoes. She was told that it is a chemical that releases a gas when it comes in contact with moisture, that induces ripening of fruits.

(a) Name the chemical powder in the sachet.

(b) Name the gas.

(c) Give a balanced chemical equation for the reaction that results in the evolution of this gas.

Organic Chemistry

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Answer

(a) Calcium carbide (CaC2)

(b) Acetylene/Ethyne.

(c)

CaC2calcium carbide+2H2OwaterC2H2ethyne or acetylene+Ca(OH)2calcium hydroxide\underset{\text{calcium carbide}}{\text{CaC}2} + \underset{\text{water}}{2\text{H}2\text{O}} \longrightarrow \underset{\text{ethyne or acetylene}}{\text{C}2\text{H}2} + \underset{\text{calcium hydroxide}}{\text{Ca(OH)}_2}

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