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Recent questions and answers in Chemistry

Questions >> CBSE XII >> Chemistry

Chemistry

States of Matter - Solid State

Electrochemistry

Chemical Kinetics

Surface Chemistry

Isolation of Elements

p-Block Elements

d- and f-block elements

Coordinate Compounds

Haloalkanes and Haloarenes

Alcohols, Phenols and Ethers

Aldehydes, Ketones and Carboxylic Acids

Chemistry in everyday life

What is the Role of Catalyst in a Chemical Reaction

answered Nov 4, 2020 by shresthasushma628

2 answers

What is a semiconductor? Describe the two main types of semiconductors and contrast their conduction mechanism.

answered Nov 8, 2018 by amilasbest15

2 answers

How will you prepare benzyl alcohol from benzaldehyde with out using a reducing agent ?

answered Nov 2, 2018 by anil197771

1 answer

Explain Half Life of a reaction.

answered Sep 28, 2018 by sahilms43khan

2 answers

Ammonia can be dried by :

answered Aug 11, 2018 by varun192017

2 answers

In a face centred cubic (fcc) arrangement, the number of atoms per unit cell is

answered Aug 5, 2018 by jayachandhacking

2 answers

The total number of tetrahedral voids in the face- centred unit cell

answered Aug 5, 2018 by jayachandhacking

2 answers

The amount of electricity that can deposit $108\;g$ of silver from silver nitrate solution is

answered May 11, 2018 by aabhakalsi

2 answers

When electron are trapped into the crystal in anion vacancy , the defect is known as

answered Apr 7, 2018 by shubhamkumar73193

2 answers

Among the halogens the one which is oxidised by nitric acid is :

answered Mar 7, 2018 by payalsamanta98

2 answers

The ability of a given substance to assume two or more crystalline structure is called

answered Feb 9, 2018 by syamantaksarkar2002

2 answers

r atomic mass of gold 197u , atomic radius=0.144nm crystallizes in a face centred cubix unit cell . Determine the density of gold?

answered Jul 27, 2017 by sharmaaparna1

1 answer

Germanium or silicon becomes semiconductor due to

answered Jul 23, 2017 by shehenazbegum1972

3 answers

Explain the Eliminations reaction.

answered Jul 19, 2017 by pady_1

1 answer

What is meant by ‘disproportionation’ of an oxidation state? Give an example

answered Jul 19, 2017 by pady_1

1 answer

Give the Preparation of Potassium dichromate (K2Cr2O7)

answered Jul 19, 2017 by pady_1

1 answer

Why Carboxylic acids have higher boiling point than aldehyde ketone and alcohols?

answered Jul 19, 2017 by pady_1

1 answer

Explain the method of preparation of carboxilic acid from (1) Alcohols (2) Aldehyde

answered Jul 19, 2017 by pady_1

1 answer

List the methods to Test to distinguish aldehydes and ketone

asked Jul 19, 2017 by pady_1

1 answer

Explain Haloform Reaction

answered Jul 19, 2017 by pady_1

1 answer

Give any two methods of preparation of Ketones

asked Jul 19, 2017 by pady_1

1 answer

<p class="MsoNormal"><span lang="EN-IN">Define Ketone<o:p></o:p></span></p>

answered Jul 19, 2017 by pady_1

1 answer

<span class="mpa-ignore">Explain Gatterman –Koch reaction</span></p>

answered Jul 19, 2017 by pady_1

1 answer

Explain any two methods of Preparation of aldehydes.

answered Jul 19, 2017 by pady_1

1 answer

Explain any two methods of Preparation of aldehydes.

answered Jul 18, 2017 by pady_1

1 answer

Define Aldehydes

answered Jul 18, 2017 by pady_1

1 answer

What is Woods Sprint.

answered Jul 18, 2017 by pady_1

1 answer

Give the uses of Ethers.

answered Jul 18, 2017 by pady_1

1 answer

How to distinguish between (i) Phenol and alcohol (ii) Prima

answered Jul 18, 2017 by pady_1

1 answer

Phenol is more acidic than Alcohols. Why?

answered Jul 18, 2017 by pady_1

1 answer

Why Alcohols and Phenols are soluble in water.

answered Jul 18, 2017 by pady_1

1 answer

Give the preparation of Alcohols from Carbonyl Compounds

answered Jul 18, 2017 by pady_1

1 answer

Give the classification Alcohols.

asked Jul 18, 2017 by pady_1

1 answer

How are Alcohols and Phenols are formed.

asked Jul 18, 2017 by pady_1

1 answer

Give the difference between Amylose and Amylopectin

asked Jul 14, 2017 by pady_1

1 answer

What are the Difference between oils and fats

answered Jul 14, 2017 by pady_1

1 answer

What are Saponification Value

answered Jul 14, 2017 by pady_1

1 answer

What are Proteins . Give the structures of Proteins.

answered Jul 14, 2017 by pady_1

1 answer

What are Vitamins and give the classification of Vitamins

answered Jul 14, 2017 by pady_1

1 answer

What are Denaturation of proteins

asked Jul 14, 2017 by pady_1

1 answer

What is Glycosidic linkage

answered Jul 14, 2017 by pady_1

1 answer

What is mutarotation

asked Jul 14, 2017 by pady_1

1 answer

List the Several materials obtained from cellulose.

answered Jul 14, 2017 by pady_1

1 answer

What are Monosaccharides

answered Jul 13, 2017 by pady_1

1 answer

Define Anomers?

answered Jul 13, 2017 by pady_1

1 answer

What is Vulcanization?

answered Jul 11, 2017 by pady_1

1 answer

What are Natural Rubber and Synthtic Rubber.

answered Jul 11, 2017 by pady_1

1 answer

Give the preparation of Nylon 6, 6 and Nylon 6

answered Jul 11, 2017 by pady_1

1 answer

What are Polydispersity Index

asked Jul 11, 2017 by pady_1

1 answer

Explain the Classification of Polymers Based on Molecular Forces

asked Jul 11, 2017 by pady_1

1 answer

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