GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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to make it wet
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to make it durable
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water forms a protective coating on it
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to save it from catching fire when exposed to dry air
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Detailed explanation-1: -It is very reactive non-metal which does not react with water. It immediately catches fire when exposed to air. To prevent this, it is stored in water.
Detailed explanation-2: -Phosphorus is a very reactive non-metal. It catches fire if exposed to air.
Detailed explanation-3: -Yellow phosphorus is very reactive and catches fire in air. Therefore, it is kept under water.
Detailed explanation-4: -White Phosphorus is stored under water and not kerosene. It is kept submerged in water because it is a highly reactive metal and when it is exposed to air it autoignition as its ignition temperature is low. When exposed to air, it is oxidized rapidly to phosphorus pentoxide.
Detailed explanation-5: -phosphorus is a very reactive metal, when exposed to air it starts reacting vigrously, therefore it is kept in water.