Sodium chloride or calcium chloride is used to clear snow from the roads. This is because:

N a C l

increases the freezing point of water

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N a C l

decreases the freezing point of water

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N a C l

decreases the boiling point of water

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N a C l

lowers the vapour pressure of water

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Solution

The correct option is B $N a C l$ decreases the freezing point of water
Sodium chloride depress the freezing point of water to such an extent that it cannot freeze to form ice. Therefore, it melts off easily at the prevailing temperature.

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Sodium chloride or calcium chloride is used to clear snow from the roads. This is because:

The correct option is B NaCl decreases the freezing point of water Sodium chloride depress the freezing point of water to such an extent that it cannot freeze to form ice. Therefore, it melts off easily at the prevailing temperature.

The correct option is B $N a C l$ decreases the freezing point of water
Sodium chloride depress the freezing point of water to such an extent that it cannot freeze to form ice. Therefore, it melts off easily at the prevailing temperature.