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HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Important Questions for Chemistry

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Chemistry
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Identify the weakest base amongst the following :

(a) p- methoxyaniline

(b) o-toluidine

(c) benzene - 1, 4 - diamine

(d) 4 - aminobenzoic acid

Appears in 1 question paper
Chapter: [13] Amines
Concept: Physical Properties of Amines

In the following 

The compound ‘B’ is _______.
(A) Propan–1–amine

(B) Propan–2–amine

(C) Isopropylamine

(D) Dimethylamine

Appears in 1 question paper
Chapter: [13] Amines
Concept: Classification of Amines

Explain the mechanism of action of hydroiodic acid on 3-methylbutan-2-ol.

Appears in 1 question paper
Chapter: [13] Amines
Concept: Amines >> Preparation of Amines

Mention 'two' uses of propan-2-one.

Appears in 1 question paper
Chapter: [13] Amines
Concept: Amines >> Preparation of Amines

Identify 'A' and 'B' in the following reaction and rewrite the complete reaction :

Appears in 1 question paper
Chapter: [13] Amines
Concept: Amines >> Preparation of Amines

Write a short note on Hofmann elimination

Appears in 1 question paper
Chapter: [13] Amines
Concept: Chemical Properties of Amines

Isobutylamine is an example of ______.

Appears in 1 question paper
Chapter: [13] Amines
Concept: Classification of Amines

Answer in one sentence.

Write the reaction of p-toluenesulphonyl chloride with diethylamine.

Appears in 1 question paper
Chapter: [13] Amines
Concept: Reaction with Arenesulfonyl Chloride

Answer in one sentence.

Which amide does produce ethanamine by Hofmann bromamide degradation reaction?

Appears in 1 question paper
Chapter: [13] Amines
Concept: Amines >> Preparation of Amines

Answer the following

What is diazotisation?

Appears in 1 question paper
Chapter: [13] Amines
Concept: Chemical Properties of Amines

Explain the basic nature of amines with a suitable example.

Appears in 1 question paper
Chapter: [13] Amines
Concept: Basicity of Amines

Distinguish between ethylamine, diethylamine, and triethylamine by using Hinsberg’s reagent?

Appears in 1 question paper
Chapter: [13] Amines
Concept: Reaction with Arenesulfonyl Chloride

Answer the following

Write diazotisation reaction of aniline?

Appears in 1 question paper
Chapter: [13] Amines
Concept: Chemical Properties of Amines

The following amines is the product of Gabriel phthalimide synthesis.

Appears in 1 question paper
Chapter: [13] Amines
Concept: Amines >> Preparation of Amines

The strongest base amongst the following is

Appears in 1 question paper
Chapter: [13] Amines
Concept: Basicity of Amines

Aniline on reaction with bromine water produces ________________

Appears in 1 question paper
Chapter: [13] Amines
Concept: Electrophilic Aromatic Substitution in Aromatic Amines

Arrange the following compounds in increasing order of their boiling points.

Ethyl alcohol, Ethyl amine, Ethanoic acid, Ethane

Appears in 1 question paper
Chapter: [13] Amines
Concept: Physical Properties of Amines

Write the order of reactivity of alkyl halides with ammonia.

Appears in 1 question paper
Chapter: [13] Amines
Concept: Amines >> Preparation of Amines

What is the action of nitrous acid on the following compounds?

Isopropyl amine

Appears in 1 question paper
Chapter: [13] Amines
Concept: Classification of Amines

Write reactions to bring about the following conversions.

Acetamide to Ethylamine

Appears in 1 question paper
Chapter: [13] Amines
Concept: Amines >> Preparation of Amines
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