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Haloalkanes and Haloarenes
Question
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Which of the following reactions is an example of nucleophilic substitution reaction?

  • RX + KOH → ROH + KX

  • 2RX + 2Na → R- R 

  • RX + H2 → RH + HX

  • RX + Mg → RMgX

Answer

A.

RX + KOH → ROH + KX

Nucleophilic substitution reactions involve substitution (replacement) of a group or atom by a nucleophile.
KOH → K+ + OH-
RX + OH- → R - OH + KX

Nucleophiles are either negative charge or a lone pair of electrons bearing species, OH- etc.

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Some More Questions From Haloalkanes and Haloarenes Chapter

Among the isomeric alkanes of molecular formula C5H12, identify the one that on photochemical chlorination yields:

i) A single monochloride.

Among the isomeric alkanes of molecular formula C5H12, identify the one that on photochemical chlorination yields:

i)Three isomeric monochlorides.

Among the isomeric alkanes of molecular formula C5H12, identify the one that on photochemical chlorination yields:
Four isomeric monochlorides.

Draw the structures of major monohalo products in each of the following reactions:

Draw the structures of major monohalo products in each of the following reactions:

Draw the structures of major monohalo products in each of the following reactions:

Draw the structures of major monohalo products in each of the following reactions:

Draw the structures of major monohalo products in each of the following reactions:

Arrange each set of compounds in order of increasing boiling points:
Bromomethane, Bromoform, Chloro-methane, Dibromomethane.