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HSC Science (General) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions

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Choose the most correct option.

Which of the following complexes is chiral?

1. [Co(en)2Cl2]

2. [Pt(en)Cl2]

3. [Cr(C2O4)3]3-

4. [Co(NH3)4Cl2]

[9] Coordination Compounds
Chapter: [9] Coordination Compounds
Concept: undefined >> undefined

Answer the following in one or two sentences.

Is the complex [CoF6] cationic or anionic if the oxidation state of cobalt ion is +3?

[9] Coordination Compounds
Chapter: [9] Coordination Compounds
Concept: undefined >> undefined

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Answer in brief.

Classify the following complexes as homoleptic and heteroleptic [Cu(NH3)4]SO4, [Cu(en)2(H2O)Cl]2⊕, [Fe(H2O)5 (NCS)]2⊕, tetraammine zinc (II) nitrate.

[9] Coordination Compounds
Chapter: [9] Coordination Compounds
Concept: undefined >> undefined

Answer the following question.

What are cationic, anionic, and neutral complexes? Give one example of each.

[9] Coordination Compounds
Chapter: [9] Coordination Compounds
Concept: undefined >> undefined

Give reason:

Alkyl halides though polar are immiscible with water.

[10] Halogen Derivatives
Chapter: [10] Halogen Derivatives
Concept: undefined >> undefined

Choose the correct option.

Which is the most resistant alcohol towards oxidation reaction among the following?

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Answer in one sentence/ word.

Hydroboration-oxidation of propene gives _________.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Answer in one sentence/ word.

Write the IUPAC name of alcohol having molecular formula C4H10O which is resistant towards oxidation.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Answer in one sentence/ word.

Write the name of the electrophile used in Kolbe’s Reaction.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Answer in brief.

Explain why phenol is more acidic than ethyl alcohol.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Write two points of difference between the properties of phenol and ethyl alcohol.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Give the reagents and conditions necessary to prepare phenol from Chlorobenzene.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Answer in brief.

Give the reagents and conditions necessary to prepare phenol from Benzene sulfonic acid.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Answer in brief.

Explain why p-nitrophenol is a stronger acid than phenol.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Answer in brief.

Give the equations of the reactions for the preparation of phenol from isopropyl benezene.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Answer in brief.

Give a simple chemical test to distinguish between ethanol and ethyl bromide.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Answer the following in one sentence.

Write reaction showing conversion of ethanenitrile into ethanol.

[12] Aldehydes, Ketones and Carboxylic Acids
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: undefined >> undefined

Answer the following in one sentence.

Write reaction showing conversion of ethanenitrile into ethanol.

[12.01] Aldehydes and Ketones
Chapter: [12.01] Aldehydes and Ketones
Concept: undefined >> undefined

Answer the following in one sentence.

Predict the product of the following reaction:

\[\ce{CH3 - CH2 - COOCH3->[i) AIH(i-Bu)_2][ii) H3O+]}\]?

[12] Aldehydes, Ketones and Carboxylic Acids
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: undefined >> undefined

Answer the following in one sentence.

Predict the product of the following reaction:

\[\ce{CH3 - CH2 - COOCH3->[i) AIH(i-Bu)_2][ii) H3O+]}\]?

[12.01] Aldehydes and Ketones
Chapter: [12.01] Aldehydes and Ketones
Concept: undefined >> undefined
< prev  3021 to 3040 of 13905  next > 
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