English
Karnataka Board PUCPUC Science 2nd PUC Class 12

PUC Science 2nd PUC Class 12 - Karnataka Board PUC Important Questions for Chemistry

Advertisements
[object Object]
[object Object]
Subjects
Popular subjects
Topics
Advertisements
Advertisements
Chemistry
< prev  481 to 500 of 550  next > 

What is the basicity of H3PO3 ?

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

Complete the following equations : P4 + H2O →

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

Complete the following equations : XeF4 + O2F2

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

Draw the structures of the following molecules: H2S2O8

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

Why does NO2 dimerise?

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

Complete the following equations: Ag+PCl5 

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

Complete the following equations: CaF2+H2SO4 

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

Complete the following equations: C + conc. H2SO4

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

Draw the structure of the following:

XeO3

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

Write the equation involved in the following reaction:

Kolbe’s reaction

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

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

Write the structure of 3-methyl butanal

Appears in 1 question paper
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Concepts of Aldehydes, Ketones, and Carboxylic Acids >> Nomenclature of Aldehydes and Ketones

How will you bring about the following conversions?

Propanone to propane

Appears in 1 question paper
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Concepts of Aldehydes, Ketones, and Carboxylic Acids >> Chemical Reactions of Aldehydes and Ketones - Reduction

Although phenoxide ion has more number of resonating structures than carboxylate ion, carboxylic acid is a stronger acid than phenol. Give two reasons.

Appears in 1 question paper
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Acids >> Chemical Reactions of Carboxylic Acids - Reactions Involving Cleavege of O-H Bond

Complete the following reactions:

 

Appears in 1 question paper
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Concepts of Aldehydes, Ketones, and Carboxylic Acids >> Chemical Reactions of Aldehydes and Ketones - Other Reactions

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

Appears in 1 question paper
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Preparation of Aldehydes and Ketones

Write the structures of A and B in the following reactions

Appears in 1 question paper
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Acids >> Methods of Preparation of Carboxylic Acids

Distinguish between: CH3COOH and HCOOH

Appears in 1 question paper
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Concepts of Aldehydes, Ketones, and Carboxylic Acids >> Chemical Reactions of Aldehydes and Ketones - Oxidation

Arrange the following in the increasing order of their boiling points: CH3CHO, CH3COOH, CH3CH2OH

Appears in 1 question paper
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Physical Properties of Aldehydes and Ketones

Arrange the following in the increasing order of their reactivity towards nucleophilic addition reaction:

C6H5COCH3, CH3-CHO, CH3COCH3

Appears in 1 question paper
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Concepts of Aldehydes, Ketones, and Carboxylic Acids >> Chemical Reactions of Aldehydes and Ketones - Nucleophilic Addition Reactions
< prev  481 to 500 of 550  next > 
Advertisements
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×