Question Bank Directory

Conjugate base for Brönsted acids $H_2O$ and $HF$ are :

In Friedel craft reaction, Toluene can be prepared by:

The compound obtained by addition of water to an alkyne having more than two carbons, in the presence of $\text{HgSO}_4$ and dilute $\text{H}_2\text{SO}_4$ at $333\text{ K}$, is:

Given compounds are as follows: (I) (II) (III). The enthalpy of hydrogenation of these compounds will be in the order as-

Given below are two statements: Statement I: The boiling point of three isomeric pentanes follows the order, n-Pentane > Isopentane > Neopentane. Statement II: When branching increases, the molecule attains the shape of a sphere. This results in smaller surface area for contact, due to which the intermolecular forces between the spherical molecules are weak, thereby lowering the boiling point.

The compound $C_7H_8$ undergoes the following reactions: $$ C_7H_8 \xrightarrow{3Cl_2/\Delta} A \xrightarrow{Br_2/Fe} B \xrightarrow{Zn/HCl} C $$ The product 'C' is:

The alkane that gives only one monochloro product on chlorination with $Cl_2$ in presence of diffused sunlight is:

Nitrobenzene can be prepared from benzene by using a mixture of conc. $\text{HNO}_3$ and conc. $\text{H}_2\text{SO}_4$. In the mixture, nitric acid acts as a/an:

Hydrocarbon (A) reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted to a gaseous hydrocarbon containing less than four carbon atoms. The formula of (A) is:

Among the following, the correct example of a free-radical substitution reaction is:

An alkene on ozonolysis gives methanal as one of the products. Its structure is:

Which of the following organic compounds has same hybridisation as its combustion product ($\text{CO}_2$)?

The increasing order of electrophilic substitution for the following compounds (structures missing) is:

The correct IUPAC name of the given compound is:

For the given reaction: 'P' is:

The compound (structure missing) on reaction with $\text{NaIO}_4$ in the presence of $\text{KMnO}_4$ gives:

The moles of lead (II) chloride that will be formed from a reaction between $6.5 \text{ g}$ of $\text{PbO}$ and $3.2 \text{ g}$ of $\text{HCl}$ are:

For the chemical reaction $N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g)$, the correct option is:

Given below is a reaction sequence: [Reaction Sequence Missing]. The compounds A and C are respectively:

Which of the following is not the characteristic of arenes?