Hydrocarbons

What will be the major product of following sequence of reactions?
$$\text{n-Bu}\text{-}\mathrm{C{\equiv}CH}\xrightarrow[\text{(ii) Lindlar cat, H}_2]{\text{(i) n-BuLi, n-C}_5\text{H}_{11}\text{Cl}}$$

Product 'A' of following sequence of reactions is
$$\text{Ethylbenzene}\xrightarrow[\text{(c) alc. KOH}]{\text{(a) Br}_2\text{, Fe}\quad\text{(b) Cl}_2,\ \Delta}\underset{\text{Major Product}}{\text{'A'}}$$

The major product (P) in the reaction

$$\mathrm{Ph{-}CH{=}CH{-}CH_2Br\xrightarrow{HBr}\ ?(P)}\qquad[\mathrm{Ph\ is\ {-}C_6H_5}]$$

is

$$\mathrm{A\xrightarrow[(ii)\ CN^-\ (iii)\ H_2O/H^+]{(i)\ Cl_2,\ \Delta}4\text{-Bromophenyl acetic acid.}}$$

In the above reaction 'A' is

With respect to the following reaction, consider the given statements :

(A) o-Nitroaniline and p-nitroaniline are the predominant products.

(B) p-Nitroaniline and m-nitroaniline are the predominant products.

(C) $\mathrm{HNO_3}$ acts as an acid.

(D) $\mathrm{H_2SO_4}$ acts as an acid.

Choose the correct option.

The major product of the following reaction contains ______ bromine atom(s).

Two isomers 'A' and 'B' with molecular formula $\mathrm{C_4H_8}$ give different products on oxidation with $\mathrm{KMnO_4}$ in acidic medium. Isomer 'A' on reaction with $\mathrm{KMnO_4/H^+}$ results in effervescence of a gas and gives ketone. The compound 'A' is

Consider the above reactions, the product A and product B respectively are

$$\mathrm{C_6H_6+CH_3CH_2CH_2Cl\xrightarrow{Anhydrous,\ AlCl_3}\ 'A'\ (Major\ Product)}$$

The stable carbocation formed in the above reaction is

A hydrocarbon 'X' is found to have molar mass of 80. A 10.0 mg of compound 'X' on hydrogenation consumed 8.40 mL of $\mathrm{H_2}$ gas (measured at STP). Ozonolysis of compound 'X' yields only formaldehyde and dialdehyde. The total number of fragments/molecules produced from the ozonolysis of compound 'X' is ______.

A compound 'A' on reaction with 'X' and 'Y' produces the same major product but different by product 'a' and 'b'. Oxidation of 'a' gives a substance produced by ants.

'X' and 'Y' respectively are

Major product of the following reaction is

The total number of monobromo derivatives formed by the alkanes with molecular formula $\mathrm{C_5H_{12}}$ is (excluding stereo isomers) ______.

$$\mathrm{\dot Cl+CH_4\rightarrow A+B}$$

A and B in the above atmospheric reaction step are :

The major product of the following reaction is

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Experimental reaction of $\mathrm{CH_3Cl}$ with aniline and anhydrous $\mathrm{AlCl_3}$ does not give o and p-methylaniline.

Reason (R) : The $-\mathrm{NH_2}$ group of aniline becomes deactivating because of salt formation with anhydrous $\mathrm{AlCl_3}$ and hence yields m-methyl aniline as the product.

In the light of the above statements, choose the most appropriate answer from the options given below :

In the presence of sunlight, benzene reacts with $\mathrm{Cl_2}$ to give product, X. The number of hydrogens in X is ______.

Total number of isomers (including stereoisomers) obtained on monochlorination of methylcyclohexane is ______.

Major product 'B' of the following reaction sequence is :

$$\mathrm{CH_3-\underset{\displaystyle CH_3}{\underset{|}{C}}=CH-CH_3\xrightarrow[\ CH_3OH\ ]{Br_2}A\xrightarrow{HI}\underset{\text{(major product)}}{B}}$$

Choose the correct option for the following reactions.