HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Important Questions for Chemistry

Observe the following compounds and answer the questions given below.

      (I)

\[\ce{\underset{\text{(II)}}{CH3 - CH2 - Br}}\]

1. Identify the type of halides.
2. Explain the nature of the C – Br bond in both of these halides.
3. Which of these compounds will undergo aqueous alkaline hydrolysis readily? Write the reaction in support of your answer.

Write the product formed when alkyl halide reacts with silver nitrite.

What is the action of following on ethyl bromide:

Na in dry ether

Write chemical reactions for the following conversions:

Bromobenzene to toluene.

Write IUPAC names of following compounds.

Write IUPAC names of following compounds.

The allylic halide, among the following, is ______.

Write the chemical reaction for the following:

Chlorobenzene is heated with fuming H₂SO₄.

Write the structure of the product formed when chlorobenzene is treated with sodium metal in the presence of dry ether.

Explain the dehydrohalogenation reaction of 2-chlorobutane.

Write the product formed by chlorobenzene treated with a fuming H₂SO₄ reaction.

What is the action of following on ethyl bromide?

silver nitrite

Among the following vinylic halide is ______.

What is the action of following on ethyl bromide?

alcoholic sodium hydroxide

Complete the reaction:

\[\ce{CH3CH2Cl ->[AgCN][alc.\Delta]}\] ?

Discuss the mechanism of alkaline hydrolysis of bromomethane.

which of the following carbocations is least stable?

(A) 

(B)

(C)

(D)

The stability order for carbocation is _______.

(A) 2° > 3° > 1° 

(B) 3° > 2° > 1°

(C) 3° > 1° > 2°

(D) 1° > 3° > 2°

How are the following conversions carried out?

2-methylbutan-1-ol into 2 -methylbutanoic acid.

But-1-ene on reaction with HCl in the presence of sodium peroxide yields _______.