Question : The chemical that is used to ripen mangoes is
Option 1: calcium sulphide
Option 2: calcium carbide
Option 3: calcium carbonate
Option 4: calcium chloride
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Correct Answer: calcium carbide
Solution : The correct option is Calcium carbide.
Calcium carbide is a chemical that has traditionally been used to artificially ripen fruits such as mangoes. When calcium carbide comes into contact with moisture, it emits Acetylene gas, which can hasten fruit ripening. However, due to the presence of hazardous residues, this procedure might cause uneven ripening, damage the flavour, and texture of the fruit, and potentially pose health hazards.
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Question : Calcium salt used as fertilizer is
Option 1: Calcium Carbide
Option 2: Calcium Carbonate
Option 3: Calcium Cyanide
Option 4: Calcium Sulphate
Question : The chemical name of ''Plaster of Paris" commonly used for setting broken bones is
Option 1: Calcium nitrate
Option 2: Calcium sulphate
Option 3: Calcium carbonate
Option 4: Calcium chloride
Question : What is the product of a reaction of calcium carbonate, water, and carbon dioxide?
Option 1: Calcium oxide
Option 2: Calcium hydroxide
Option 3: Hydrochloric acid
Option 4: Calcium Hydrogen Carbonate
Question : Limestone, chalk and marble are different forms of ______.
Option 1: Calcium Phosphate
Option 2: Calcium Hydroxide
Option 3: Calcium Oxide
Option 4: Calcium Carbonate
Question : What is formed when magnesium is burnt?
Option 1: Baking soda
Option 2: Calcium carbonate
Option 3: Ash
Option 4: Vinegar
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