List of top Chemistry Questions on Methods of Preparation of Haloalkanes asked in KEAM

CH3I cannot be prepared by direct iodination of methane as the reaction is slow and reversible. However, it can be prepared by carrying out the reaction in the presence of

Choose the Swarts reaction in the following:

2-Bromopropane reacts with Mg in dry ether to give a product which on treatment with HCHO forms an addition product. The addition product on hydrolysis forms

Which of the following organic halogen compound has high reactivity towards \(S_N1\) mechanism?

Grignard reagent is prepared by the action of

In Swarts reaction, Freon-12 is manufactured from

The order of reactivity towards \( \text{S}_\text{N}2 \) reaction among the following is
\[ (a)\ \text{CH}_3\text{CH}_2\text{Cl} \quad (b)\ \text{CH}_3\text{CH(Cl)}\text{CH}_3 \quad (c)\ \text{(CH}_3\text{)}_3\text{CCI} \quad (d)\ \text{CH}_3\text{CH}_2\text{Cl} \]

$S_{N}1$ reaction is most favoured by:

Which of the following is a vicinal dihalide?

The order of reactivity of the following compounds towards \( S_N2 \) displacement reaction is (i) 2-Bromo-2-methylbutane (ii) 1-Bromopentane (iii) 2-Bromopentane

The order of reactivity of the following compounds towards SN2 displacement reaction is (i) \(C_{6}H_{5}CH(CH_{3})Br\) (ii) \(C_{6}H_{5}CH(C_{6}H_{5})Br\) (iii) \(C_{6}H_{5}C(CH_{3})(C_{6}H_{5})Br\) (iv) \(C_{6}H_{5}CH_{2}Br\)

Bromoethane on treatment with sodium metal in dry ethereal solution gives

The correct order of increasing reactivity of the following alkyl halides, CH$_3$CH$_2$CH(Br)CH$_3$ (I), CH$_3$CH$_2$CH$_2$Br (II), (CH$_3$)$_2$CClCH$_2$CH$_3$ (III) and CH$_3$CH$_2$CH$_2$Cl (IV) towards S$_N$2 displacement is

Which one of the following is an allylic halide?