List of top Chemistry Questions on Methods of Preparation of Haloalkanes

With reference to the two statements Assertion and Reason, choose the correct option.
• [Assertion:] The order of reactivity towards $\text{S}_{\text{N}}1$ reaction is: $\text{C}_6\text{H}_5\text{CH}_2\text{Br} > (\text{CH}_3)_2\text{CH-Br} > \text{CH}_3-\text{CH}_2\text{Br}$
• [Reason:] Among the given 3 compounds, the Benzyl carbocation formed is the most stable while Isopropyl carbocation is the least stable one
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
What is the major product when 2-bromopentane reacts with alcoholic KOH?
Identify the major product formed when Ethyl Bromide reacts with alcoholic KOH.
Which of the following is a redox reaction?
Which of the following reagents is used in the preparation of nitroalkane from haloalkane?
Which among the following is NOT benzylic halide?
Which of the following is NOT obtained when a mixture of chloroethane and 1-chloropropane is treated with sodium metal in dry ether?
The order of reactivity towards \( \text{S}_\text{N}2 \) reaction among the following is
\[ (a)\ \text{CH}_3\text{CH}_2\text{Cl} \quad (b)\ \text{CH}_3\text{CH(Cl)}\text{CH}_3 \quad (c)\ \text{(CH}_3\text{)}_3\text{CCI} \quad (d)\ \text{CH}_3\text{CH}_2\text{Cl} \]
Which of the following reagents is used in the preparation of nitroalkane from haloalkane?
Which of the following is a redox reaction?
$S_{N}1$ 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
Which of the following reagents is used in the preparation of nitroalkane from haloalkane?
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
Alkyl chlorides on heating with metal fluorides form alkyl fluorides. This reaction is known as
Identify the major product formed when 2-chlorobutane is boiled with concentrated alcoholic \(\text{KOH}\) .
Which of the following does not obey the octet rule?