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  461 to 480 of 550  next > 

Explain the mechanism of the following reaction:

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

How will you convert: Propene to Propan-2-ol?

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

Account for the following: Fluorine does not exhibit positive oxidation state.

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

Account for the following: Oxygen shows catenation behavior less than sulphur.

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

Pb(NO3)2 on heating gives a brown gas which undergoes dimerisation on cooling? Identify the gas

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

Draw the structures of the following molecules: (HPO3)3

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

What happens when: SO2 gas is passed through an aqueous solution Fe+3 salt?

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

Write the final product(s) in each of the following reactions:

Appears in 1 question paper
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Chemical Reactions of Alcohols and Phenols >> Reactions Involving Cleavage of Carbon–Oxygen (C–O) Bond in Alcohols

Write the final product(s) in each of the following reactions:

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

Give reasons: SO2 is reducing while TeO2 is an oxidising agent.

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

Out of white phosphorus and red phosphorus, which one is more reactive and why?

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 main products when

2, 4, 6-trinitrochlorobenzene is subjected to hydrolysis

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

Give reasons for the following:

o-nitrophenol is more acidic than o-methoxyphenol.

Appears in 1 question paper
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Chemical Reactions of Alcohols and Phenols >> Reactions Involving Cleavage of Carbon–Oxygen (C–O) Bond in Alcohols

Give reasons for the following: Butan-1-ol has a higher boiling point than diethyl ether.

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

Account for the following: Interhalogens are more reactive than pure halogens.

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

which poisonous gas is evolved when white phosphorus is heated with conc. NaOH solution? Write the chemical equation involved.

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

Which noble gas has the lowest boiling point?

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

Fluorine is a stronger oxidising agent than chlorine. Why?

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

Complete the equation

PbS + O3

Appears in 1 question paper
Chapter: [7] P - Block Elements
Concept: Group 16 Elements - The Oxygen Family >> Ozone
< prev  461 to 480 of 550  next > 
Advertisements
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×