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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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Write any two uses of actinides.

Appears in 3 question papers
Chapter: [8] Transition and Inner Transition Elements
Concept: Applications of Actinoids

Why +2 oxidation state of manganese is more stable?

Appears in 3 question papers
Chapter: [8.01] D-block Elements
Concept: Physical Properties of the Transition Elements (d-block)

Write four points of distinction between Lanthanoids and Actinoids.

Appears in 3 question papers
Chapter: [8.02] F-block Elements
Concept: F-block Elements >> The Actinoids

Draw the geometrical isomers of complex [Pt(NH3)2Cl2].

Appears in 3 question papers
Chapter: [9] Coordination Compounds
Concept: Isomerism in Coordination Compounds >> Stereoisomerism

Write the hybridization and magnetic behaviour of the complex [Ni(CO)4].

(At.no. of Ni = 28)

Appears in 3 question papers
Chapter: [9] Coordination Compounds
Concept: Bonding in Coordination Compounds >> Magnetic Properties of Coordination Compounds

Write postulates of Werner’s theory of co-ordination complexes.

Appears in 3 question papers
Chapter: [9] Coordination Compounds
Concept: Terms Used in Coordination Chemistry

The type of mono halogen derivative in which a halogen atom is bonded to sp3 hybridized carbon atom next to carbon-carbon double bond is ______________

Appears in 3 question papers
Chapter: [10] Halogen Derivatives
Concept: Classification of Halogen Derivatives

Write chemical equation of acetyl chloride with ethanol

Appears in 3 question papers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: Ethers

Write the preparation of ethanol from methyl magnesium iodide.

Appears in 3 question papers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: Ethers

What happens when glucose is treated with Hydrogen cyanite (HCN).

Appears in 3 question papers
Chapter: [11.02] Phenols
Concept: Phenols >> Uses of Phenols

Write a reaction to distinguish acetaldehyde from acetone.

Appears in 3 question papers
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: Chemical Properties of Aldehydes and Ketones

Explain the acidic nature of carboxylic acids.

Appears in 3 question papers
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: Chemical Properties of Carboxylic Acids

Write a short note on Hoffmann bromamide degradation.

Appears in 3 question papers
Chapter: [13] Amines
Concept: Preparation of Amines

Write a short note on Hoffmann bromamide degradation.

Appears in 3 question papers
Chapter: [13.01] Amines
Concept: Preparation of Amines

What is the action of benzene diazonium chloride on phenol in alkaline medium?

Appears in 3 question papers
Chapter: [13.03] Diazonium Salts
Concept: Importance of Diazonium Salts in Synthesis of Aromatic Compounds

Define complex lipids

Appears in 3 question papers
Chapter: [14.02] Proteins
Concept: Biomolecules in the Cell > Proteins >> Structure, Classification and Functions

Write the reaction for the preparation of Nylon-6.

Appears in 3 question papers
Chapter: [15] Polymers
Concept: Introduction to Polymers >> Nylon 6

Define Green chemistry.

Appears in 3 question papers
Chapter: [16] Green Chemistry and Nanochemistry
Concept: Green Chemistry and Nanochemistry

Bottom ash of thermal power stations can be used as raw material for cement and brick industry. This example illustrates which of the following principle of green chemistry?

Appears in 3 question papers
Chapter: [16] Green Chemistry and Nanochemistry
Concept: Principles of Green Chemistry

Explain any three characteristic features of nanoparticles.

Appears in 3 question papers
Chapter: [16] Green Chemistry and Nanochemistry
Concept: Nanoparticles and Nanotechnology
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