Haloalkanes and halo arenes practice · Medium

he catalyst used in the preparation of an alkyl chloride by the action of dry HCl on an alcohol is

Wurtz’s reaction involves the reduction of alkyl halide with

${C_6}{H_5}C{H_2}Br\xrightarrow[{2.\,{H_3}{O^ + }}]{{1.\,Mg,\,\,{\text{Ether}}}}X$
The product $({X})$ is :-

If chloroform is left open in air in the presence of sunlight, it gives

Aryl halides can not be prepared by the reaction of aryl alcohols with ${PCl}_3, {PCl}_5$ or ${SOCl}_2$ because

Which one of the following is most reactive towards aqueous $NaOH$?

Which one of the following halides will not undergo oxidation with dimethyl sulfoxide?

In ${SN}^1$ reaction, the recemization takes place. It is due to

Statement I : Reaction of 2-bromo-3-mehylbutane with ethanol gives 2-ethoxy-3-methylbutane
Statement II : 1, 4-Hydride shift occurs and forms the unexpected product

For a given alkyl group, the densities/b. p./m. p. are in the order:

2-chlorobutane obtained by chlorination of butane, will be:

The catalyst used in the preparation of an alkyl chloride by the action of dry ${HCl}$ on an alcohol is

Out of the following which is most and least reactive towards nucleophilic substitution respectively?
${\text{C}}{{\text{H}}_3}\mathop {\text{C}}\limits^{\begin{array}{cccccccccccccccccccc} {\text{O}} \\ {||} \end{array}} {\text{OC}}{{\text{H}}_2} - {\text{C}}{{\text{H}}_3}, {\text{C}}{{\text{H}}_3} - \mathop {\text{C}}\limits^{\begin{array}{cccccccccccccccccccc} {\text{O}} \\ {||} \end{array}} - {\text{Cl}}$

${\text{C}}{{\text{H}}_3} - \mathop {\text{C}}\limits^{\begin{array}{cccccccccccccccccccc} {\text{O}} \\ {||} \end{array}} - {\text{NH}} - {\text{C}}{{\text{H}}_3}, {\text{C}}{{\text{H}}_3} - \mathop {\text{C}}\limits^{\begin{array}{cccccccccccccccccccc} {\text{O}} \\ {||} \end{array}} - {\text{O}} - \mathop {\text{C}}\limits^{\begin{array}{cccccccccccccccccccc} {\text{O}} \\ {||} \end{array}} - {\text{C}}{{\text{H}}_3}$

S-I: $CHI_3$ gives a precipitate with ${AgNO}_3$ solution on heating but not ${CHCl}_3$

S-II: $C-I$ bond is quite weak as compared to ${C}-{Cl}$ bond

Fires result from the combustion of alkali metals can be extinguished by:

The hydrogen atom in chloroform is:

Its exposure in air causes impaired hearing and vision. Higher level exposure causes nausea and numbness in fingers and toes. Direct skin contact causes intense burning and mild redness of skin and even burn cornea. Which of the following solvents is responsible for it?

Which one of the following is excellent substrate for $\mathrm{SN}^2$ reaction?

Ethyl ortho formate is formed by heating ………… with sodium ethoxide.

Which of the following compounds is an example of Freon?

Arrange the following in the increasing order of ease of dehydrohalogenation
$\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{Cl}, \mathrm{CH}_3 \mathrm{CH}(\mathrm{Cl}) \mathrm{CH}_3,\left(\mathrm{CH}_3\right)_3 \mathrm{CCl}$

Arrange the compound of each set in order of reactivity towards $S{N^2}$ displacement

a) 1-Bromo butane $\quad \quad$ b) 1-Bromo-2,2-dimethyl propane

c) 1-Bromo-2-methyl butane $\quad$ d) 1-Bromo-3-methyl butane

Which one of the following compound is obtained when grignard reagent $\left(\mathrm{CH}_3 \mathrm{MgBr}\right)$ is treated with water?

When chloroform is exposed to light and damp air, it
gives (among other products):

Which of the following represents Westrosol ?

On mixing a certain alkane with chlorine and irradiating it with ultraviolet light, it forms only one monochloroalkane.

The reaction :

${C}_2 {H}_5 {OH}+{SOCl}_2 \stackrel{\text { Pyridine }}{\longrightarrow} {C}_2 {H}_5 {Cl}+{SO}_2+{HCl}$
is known as

Propyl iodide and isopropyl iodide are:

Assertion : Alkyl halides are not soluble in water.

Reason : Alkyl halide does not form H-Bonds with water molecule although alkyl halide is polar in nature.

Which one of the following is most reactive towards nucleophilic substitution reaction?