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

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Chemistry
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Explain optical activity of 2-chlorobutane.

Appears in 2 question papers
Chapter: [10] Halogen Derivatives
Concept: Optical Isomerism in Halogen Derivatives

Explain primary benzylic halide shows higher reactivity by SN1 mechanism than other primary alkyl halide.

Appears in 2 question papers
Chapter: [10] Halogen Derivatives
Concept: Chemical Properties of Halogen Derivatives

What is Grignard reagent? How is it prepared? Why are they prepared under anhydrous condition?

Appears in 2 question papers
Chapter: [10] Halogen Derivatives
Concept: Methods of Preparation of Alkyl Halides

What is the action of following on ethyl bromide?

\[\ce{Mg}\] in dry ether

Appears in 2 question papers
Chapter: [10] Halogen Derivatives
Concept: Reaction with Active Metals

What is the action of the following on ethyl bromide?

silver acetate

Appears in 2 question papers
Chapter: [10.01] Haloalkanes
Concept: Hydrocarbons: Alkanes >> Reactions of Haloalkanes - Nucleophilic Substitution Reactions

What is Grignard reagent?

Appears in 2 question papers
Chapter: [10.02] Haloarenes
Concept: Hydrocarbons: Alkanes >> Reactions of Haloarenes - Nucleophilic Substitution

What is metamerism? 

Appears in 2 question papers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: Alcohols, Phenols and Ethers >> Nomenclature

How is phenol converted into the following?

benzoquinone

Appears in 2 question papers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: Alcohols, Phenols and Ethers >> Nomenclature

Arrange the following in decreasing order of acid strength.

CH3OH, CH3–CH2–OH, CH3–CH(OH)–CH3, (CH3)3–C–OH

Appears in 2 question papers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: Preparation of Alcohols and Phenols

Write the reaction involved in the preparation of phenol from benzene sulphonic acid.

Appears in 2 question papers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: Preparation of Alcohols and Phenols

Compound ‘A’ with molecular formula C6H5Cl is fused with NaOH at high temperature under pressure to give compound ‘B’. Compound ‘B’ on treatment with dil.HCl gives compound C having characteristic carbolic odour. Write the chemical equations in support of this. Name the process and give uses of compound C.

Appears in 2 question papers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: Uses of Alcohols, Phenols and Ethers

Write a chemical reaction for the following conversion:

Acetic acid into ethyl alcohol.

Appears in 2 question papers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: Alcohols, Phenols and Ethers >> Nomenclature

What is metamerism? 

Appears in 2 question papers
Chapter: [11.01] Alcohols
Concept: Alcohols, Phenols and Ethers >> Nomenclature

How is phenol converted into the following?

benzoquinone

Appears in 2 question papers
Chapter: [11.01] Alcohols
Concept: Alcohols, Phenols and Ethers >> Nomenclature

Write a chemical reaction for the following conversion:

Acetic acid into ethyl alcohol.

Appears in 2 question papers
Chapter: [11.01] Alcohols
Concept: Alcohols, Phenols and Ethers >> Nomenclature

What is metamerism? 

Appears in 2 question papers
Chapter: [11.02] Phenols
Concept: Alcohols, Phenols and Ethers >> Nomenclature

What is the action of bromine water on carbolic acid?

Appears in 2 question papers
Chapter: [11.02] Phenols
Concept: Phenols >> Methods of Preparation

How carbolic acid is prepared from benzene sulphonic acid ?

Appears in 2 question papers
Chapter: [11.02] Phenols
Concept: Phenols >> Phenols

How is phenol prepared from cumene?

Appears in 2 question papers
Chapter: [11.02] Phenols
Concept: Phenols >> Methods of Preparation

How is phenol converted into the following?

benzoquinone

Appears in 2 question papers
Chapter: [11.02] Phenols
Concept: Alcohols, Phenols and Ethers >> Nomenclature
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