10. HALOALKANES AND HALOARENES[KARNATAKA CET EXCLUSIVE]
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CHEMISTRY(KCET)

285536 \(\square \mathrm{Br}+\mathrm{Mg} \xrightarrow{\text { Dry ether }} \mathrm{A} \xrightarrow[\mathrm{H}^{+}]{\mathrm{H}_2 \mathrm{O}} \mathrm{~B}\)
The product ' \(B\) ' is

Ans:d
Exp:(d)
'B'

Karnataka CET 2015
CHEMISTRY(KCET)

285537 An incorrect statement with respect to\(\mathrm{S}_{\mathrm{N}} 1\) and \(\mathrm{S}_{\mathrm{N}} 2\) mechanisms for alkyl halide is

1 a strong nucleophile in an aprotic solvent increases the rate or favours\(\mathrm{S}_{\mathrm{N}} 2\) reaction
2 competing reaction for an\(\mathrm{S}_{\mathrm{N}} 2\) reaction is rearrangement
3 \(\mathrm{S}_{\mathrm{N}} 1\) reactions can be catalysed by some Lewis acids
4 a weak nucleophile and a protic solvent increases the rate or favours\(\mathrm{S}_{\mathrm{N}} 1\) reaction.
Karnataka CET 2014
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CHEMISTRY(KCET)

285536 \(\square \mathrm{Br}+\mathrm{Mg} \xrightarrow{\text { Dry ether }} \mathrm{A} \xrightarrow[\mathrm{H}^{+}]{\mathrm{H}_2 \mathrm{O}} \mathrm{~B}\)
The product ' \(B\) ' is

Ans:d
Exp:(d)
'B'

Karnataka CET 2015
CHEMISTRY(KCET)

285537 An incorrect statement with respect to\(\mathrm{S}_{\mathrm{N}} 1\) and \(\mathrm{S}_{\mathrm{N}} 2\) mechanisms for alkyl halide is

1 a strong nucleophile in an aprotic solvent increases the rate or favours\(\mathrm{S}_{\mathrm{N}} 2\) reaction
2 competing reaction for an\(\mathrm{S}_{\mathrm{N}} 2\) reaction is rearrangement
3 \(\mathrm{S}_{\mathrm{N}} 1\) reactions can be catalysed by some Lewis acids
4 a weak nucleophile and a protic solvent increases the rate or favours\(\mathrm{S}_{\mathrm{N}} 1\) reaction.
Karnataka CET 2014
For More Updates join with Us