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Draw the structure of the following:

H2S2O7

Appears in 1 question paper
Chapter: [7] P - Block Elements
Concept: Group 16 Elements - The Oxygen Family >> Compounds of Sulphur

Draw the structures of the following

XeF6

Appears in 1 question paper
Chapter: [7] P - Block Elements
Concept: Group 18 Elements - The Noble gas Family

Write the formula of the compound of iodine which is obtained when conc. HNO3 oxidises I2

Appears in 1 question paper
Chapter: [7] P - Block Elements
Concept: Group 16 Elements - The Oxygen Family >> Classification of Oxides

Write the IUPAC name of the following compound: 

Appears in 1 question paper
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Nomenclature of Alcohols, Phenols and Ethers

Draw the structures of the following: BrF5

Appears in 1 question paper
Chapter: [7] P - Block Elements
Concept: Group 17 Elements - The Halogen Family >> Interhalogen Compounds

Write the structures of the products when Butan-2-ol reacts with CrO3

Appears in 1 question paper
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Nomenclature of Alcohols, Phenols and Ethers

Write the structures of the products when Butan-2-ol reacts with SOCl2

Appears in 1 question paper
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Nomenclature of Alcohols, Phenols and Ethers

Give reasons for the following:

Electron gain enthalpies of halogens are largely negative.

Appears in 1 question paper
Chapter: [7] P - Block Elements
Concept: Compounds of Halogens

Give reasons for the following: N2O5 is more acidic than N2O3

Appears in 1 question paper
Chapter: [7] P - Block Elements
Concept: Group 16 Elements - The Oxygen Family >> Classification of Oxides

Complete the following equations:

 KMnO4 

 

Appears in 1 question paper
Chapter: [7] P - Block Elements
Concept: Group 17 Elements - The Halogen Family

How will you convert: Phenol to 2, 4, 6 − trinitrophenol?

Appears in 1 question paper
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Methods of Preparation of Alcohols

Which allotrope of sulphur is thermally stable at room temperature ?

Appears in 1 question paper
Chapter: [7] P - Block Elements
Concept: Group 15 Elements - The Nitrogen Family >> Phosphorus - Allotropic Forms

Name the reagents used in the following reactions:

Appears in 1 question paper
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Methods of Preparation of Alcohols

Write the structures of main products when benzene diazonium chloride (C6 H5 N+2CI)C6 H5 N2+CI- reacts with the  :  HBF4/∆

Appears in 1 question paper
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Methods of Preparation of Phenols

 Write the structures of main products when benzene diazonium chloride (C6 H5 N+2CI)C6 H5 N2+CI- reacts with the :Cu/HBr

Appears in 1 question paper
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Methods of Preparation of Phenols

Write the structures of A, B and C in the following reactions :

\[{CH}_3 CI \to^{KCN} A \to^{LiAIH} B \to^{{HNO}_2}_{273K} C\]
Appears in 1 question paper
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Methods of Preparation of Alcohols

Draw the structures of the following :

H2S2O7

Appears in 1 question paper
Chapter: [7] P - Block Elements
Concept: Group 16 Elements - The Oxygen Family >> Compounds of Sulphur

Account for the following :

HClO4 is a stronger acid than HClO.

Appears in 1 question paper
Chapter: [7] P - Block Elements
Concept: Group 17 Elements - The Halogen Family >> Oxoacids of Halogens

The two O−O bond lengths in the ozone molecule are equal.

Appears in 1 question paper
Chapter: [7] P - Block Elements
Concept: Group 16 Elements - The Oxygen Family >> Ozone

Account for the following :

H3PO2 is a stronger reducing agent than H3PO3.

Appears in 1 question paper
Chapter: [7] P - Block Elements
Concept: Group 16 Elements - The Oxygen Family >> Oxoacids of Sulphur
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CBSE Science (English Medium) इयत्ता १२ Important Questions
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Important Questions for CBSE Science (English Medium) इयत्ता १२ Chemistry
Important Questions for CBSE Science (English Medium) इयत्ता १२ Computer Science (C++)
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Important Questions for CBSE Science (English Medium) इयत्ता १२ English Core
Important Questions for CBSE Science (English Medium) इयत्ता १२ English Elective - NCERT
Important Questions for CBSE Science (English Medium) इयत्ता १२ Entrepreneurship
Important Questions for CBSE Science (English Medium) इयत्ता १२ Geography
Important Questions for CBSE Science (English Medium) इयत्ता १२ Hindi (Core)
Important Questions for CBSE Science (English Medium) इयत्ता १२ Hindi (Elective)
Important Questions for CBSE Science (English Medium) इयत्ता १२ History
Important Questions for CBSE Science (English Medium) इयत्ता १२ Informatics Practices
Important Questions for CBSE Science (English Medium) इयत्ता १२ Mathematics
Important Questions for CBSE Science (English Medium) इयत्ता १२ Physical Education
Important Questions for CBSE Science (English Medium) इयत्ता १२ Physics
Important Questions for CBSE Science (English Medium) इयत्ता १२ Political Science
Important Questions for CBSE Science (English Medium) इयत्ता १२ Psychology
Important Questions for CBSE Science (English Medium) इयत्ता १२ Sociology
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