Which of the following is lighter than water?
1) 1-chlorobutane 2) 1-bromopropane 3) 2-bromopropane 4) 1-bromobutane
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answer is chlorobutane
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1-CHLOROBUTANE
It is lighter in weight than water with respect to its molecular mass too.
EXPLANATION :
* At a standard temperature and pressure lower than that of water, 1-chlorobutane is a colorless, stinging liquid. It is very flammable and does not react with water, yet it is neither an oxidizer nor an explosive.
* However, vapors can combine with air to generate explosive combinations.
* 1-chlorobutane poses no toxicological or ecotoxicological concerns, with the exception of its high flammability, which poses a hazard.
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