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Question

The compound sprinkled on road to keep them wet and prevent dust from flying is :

A
calcium hydroxide
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B
calcium chloride
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C
calcium sulphate
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D
calcium hydride
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Solution

The correct option is B calcium chloride
Calcium chloride is used to keep road wet and prevent dust from flying and it is a cost-effective-and highly effective-agent for dust control.

Calcium chloride:

  • Can be reworked when the road surface is moist.
  • reduces grading costs by as much as 50%
  • reduces replacement cost of gravel and other materials by up to 80%
  • reduces labor costs

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