1. Tardigrade
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  3. Chemistry
  4. Assertion: Rate of hydrolysis of methyl chloride to methanol is higher in DMF than in water. Reason: Hydrolysis of methyl chloride follows second order kinetics.

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Q. Assertion : Rate of hydrolysis of methyl chloride to methanol is higher in DMF than in water.
Reason : Hydrolysis of methyl chloride follows second order kinetics.

AIIMSAIIMS 2005Haloalkanes and Haloarenes

Solution:

Primary alkyl halide (Here $CH _{3} Cl$ ) undergo $S _{ N } 2$ mechanism and not $S _{ N } 1$ mechanism. Hence, hydrolysis of $CH _{3} Cl$ is favoured by non polar medium or polar non-protic solvent (in which proton is not generated) like DMF whereas $S _{ N } 1$ mechanism are favoured by polar solvents like water.