Q1. Name the reaction that occurs in rancidity of food.
Q2. Name the compound used for testing of CO2 gas,
Q3. Name the chemicals used in black and white photography.
Q4. Give one use of quick lime.
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Answer:
1.redox reaction
Explanation:
2.Carbon dioxide reacts with calcium hydroxide solution to produce a white precipitate of calcium carbonate. Limewater is a solution of calcium hydroxide. If carbon dioxide is bubbled through limewater, the limewater turns milky or cloudy white.
3.sulhpur bromide
4.Uses: Quicklime has a wide range of uses, including in the production of iron and steel, paper and pulp production,
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