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HSC Science (Computer Science) इयत्ता १२ वी - Maharashtra State Board Important Questions for Chemistry

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

Isopropyl amine

Appears in 1 question paper
Chapter: [13.01] Amines
Concept: Classification of Amines

Write reactions to bring about the following conversions.

Acetamide to Ethylamine

Appears in 1 question paper
Chapter: [13.01] Amines
Concept: Amines >> Preparation of Amines

Explain Hoffmann’s exhaustive alkylation with suitable reactions.

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Chapter: [13.01] Amines
Concept: Amines >> Preparation of Amines

Write the name of the product formed by the action of LiAlH4/ether on acetamide.

Appears in 1 question paper
Chapter: [13.01] Amines
Concept: Amines >> Preparation of Amines

What is the action of the following reagents on ethyl amine?

Nitrous acid

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Chapter: [13.01] Amines
Concept: Amines >> Chemical Reactions of Amines - Reaction with Nitrous Acid

What is the action of the following reagents on ethyl amine?

Chloroform and caustic potash

Appears in 1 question paper
Chapter: [13.01] Amines
Concept: Amines >> Chemical Reactions of Amines - Carbylamine Reaction

Why amines are basic in nature?

Appears in 1 question paper
Chapter: [13.01] Amines
Concept: Introduction of Amines

Write the name of reduction product formed when ethyl cyanide is treated with sodium and alcohol.

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Chapter: [13.01] Amines
Concept: Amines >> Preparation of Amines

Among dimethylamine (pKb = 3.27) and diethylamine (pKb = 3.0), which one is more basic?

Appears in 1 question paper
Chapter: [13.01] Amines
Concept: Amines >> Identification of Primary, Secondary and Tertiary Amines

What is Stephen reaction?

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Chapter: [13.02] Cyanides and Isocyanides
Concept: Cyanides and Isocyanides

Write preparation of ethyl cyanide from ethyl bromide.

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Chapter: [13.02] Cyanides and Isocyanides
Concept: Cyanides and Isocyanides

Write a note on Sandmeyer's reaction.

Appears in 1 question paper
Chapter: [13.03] Diazonium Salts
Concept: Diazonium Salts >> Importance of Diazonium Salts in Synthesis of Aromatic Compounds

What is the action of benzene diazonium chloride on Aniline

Appears in 1 question paper
Chapter: [13.03] Diazonium Salts
Concept: Diazonium Salts >> Importance of Diazonium Salts in Synthesis of Aromatic Compounds

\[\ce{CH2OH-CO-(CHOH)4-CH2OH}\] is an example of ______.

Appears in 1 question paper
Chapter: [14] Biomolecules
Concept: Biomolecules in the Cell > Carbohydrates

Give scientific reasons:

α-Amino acids have high melting points compared to the corresponding amines or carboxylic acids of comparable molecular mass.

Appears in 1 question paper
Chapter: [14] Biomolecules
Concept: Biomolecules in the Cell > Proteins

Draw a neat diagram for the following:

Haworth formula of maltose

Appears in 1 question paper
Chapter: [14] Biomolecules
Concept: Biomolecules in the Cell > Carbohydrates

Draw the structure of α-D glucopyranose.

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Chapter: [14] Biomolecules
Concept: Biomolecules in the Cell > Carbohydrates

Write industrial application of enzyme catalysis.

Appears in 1 question paper
Chapter: [14] Biomolecules
Concept: Biomolecules in the Cell > Proteins

Write a chemical reaction to convert glucose into glucose cyanohydrin.

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Chapter: [14] Biomolecules
Concept: Biomolecules in the Cell > Carbohydrates

Define α-amino acids.

Appears in 1 question paper
Chapter: [14] Biomolecules
Concept: Biomolecules in the Cell > Proteins
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