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Preparation of Chlorine

Which of the ...

Question

Which of the following is spread on icy roads to melt ice in cold countries?

A

Sodium bicarbonate

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B

Rock salt

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C

Sodium hydroxide

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D

None of these

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Solution

The correct option is A Rock salt
Rock salt or halite is the form of sodium chloride. Brine is a solution of water and salt has a lower freezing point than pure water putting salt or saltwater on ice that is near $0^{o} C$ will cause it to melt. It is called as de-icing done after snowstorm to improve traction.

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Similar questions

Q. (i) When water is poured on an icy surface, some ice melts.
(ii) When an ice block is added to water in a drum, some ice melts.
So in which case is more ice melted. When water is added to ice, or ice to water?

Q. Heavy snow can block traffic on road. It is difficult to melt the ice. Which of the following melts ice on roads even at temperatures below

0^{\circ} C

?

Q. Assertion :Salt water is sprinkled in cold countries to remove ice on roads Reason: Melting point increases by addition of soluble impurities

Q. Assertion :Salt water is sprinkled in cold countries to remove ice on roads. Reason: Melting point increases by addition of soluble impurities.

Choose the correct options.

State True or False.

Corrosion of motor cars is the major problem in the winter, when salt is spread on road to melt ice and snow.

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