Integer Answer Type Questions for JEE: Haloalkanes & Haloarenes | Chapter-wise Tests for JEE Main & Advanced PDF Download

Q.1. 1,2-dibromopropane on treatment with X moles of NaNH₂ followed by treatment with ethyl bromide gave a Pentyne, the value of X is

Ans. 3

Q.2.

With excess NaI, how many halogens in the given compound can be substituted (SN) with reasonable speed.

Ans. 3
Halogens attached to sp² hybridized carbon cannot undergo Nucleophilic substitution easily. Even the bridge-head halogen cannot be substituted.

Q.3. Perchloroethane is C₂Cl_x where x is ______

Ans. 6
Hexachloroethane, also known as perchloroethane (PCA), C₂Cl₆, is a white crystalline solid at room temperature with a camphor-like odor. It has been used by the military in smoke compositions, such as base-eject smoke munitions.

Q.4. A polyhydric alcohol is benzoylated using benzoyl chloride in the presence of NaOH to give benzoyl derivative of mol. Mass 404.  What is the number of –OH groups in this alcohol?

Ans. 3

i.e. H (Mol. Wt. = 1) is replaced by  group (mol. Wt.
= 105) i.e., there is ncreases to 104 in mol. Wt. per OH group.
∴ No. of OH groups

Q.5. The number of different types of alkene obtained by the reaction of 2-Bromobutane with C₂H₅O Na in presence of C₂H₅OH  is.

Ans. 2

Q.6. How many number of product are possible for the following reaction?

Ans. 3

Q.7.

With excess NaI, how many halogens in the given compound can be substituted (S_N) with resonable speed.

Ans. 3
Halogens attached to sp² hybridised carbon cannot undergo nucleophilic substitution. Even the bridge-head halogen cannot be substituted.

Q.8. In the following reaction, how many carbon atom are present in X compound,

Ans. 6

Q.9. In the following reaction sequence, how many carbon atom are present in z compound,

Ans. 6

Q.10. The number of substitution products formed when metabromo anisole is treated with KNH₂/ NH₃.

Ans. 3