JEE Main > Chemistry in Everyday Life

Explore popular questions from Chemistry in Everyday Life for JEE Main. This collection covers Chemistry in Everyday Life previous year JEE Main questions hand picked by popular teachers.


Q 1.    

Correct4

Incorrect-1

The compound is used as

A

antiseptic

B

antibiotic

analgesic

D

pesticide.

Explanation


Q 2.    

Correct4

Incorrect-1

Which of the following could act as a propellant for rockets?

A

Liquid hydrogen {tex} + {/tex} liquid nitrogen

B

Liquid oxygen {tex} + {/tex} liquid argon

Liquid hydrogen {tex} + {/tex} liquid oxygen

D

Liquid nitrogen {tex} + {/tex} liquid oxygen.

Explanation


Q 3.    

Correct4

Incorrect-1

The compound formed on heating chlorobenzene with chloral in the presence of concentrated sulphuric acid is

A

gammexene

DDT

C

freon

D

hexachloroethane.

Explanation



Q 4.    

Correct4

Incorrect-1

The smog is essentially caused by the presence of

A

{tex} \mathrm { O } _ { 2 } {/tex} and {tex} \mathrm { O } _ { 3 } {/tex}

B

{tex} \mathrm { O } _ { 2 } {/tex} and {tex} \mathrm { N } _ { 2 } {/tex}

oxides of sulphur and nitrogen

D

{tex} \mathrm { O } _ { 3 } {/tex} and {tex} \mathrm { N } _ { 2 } {/tex}

Explanation


Q 5.    

Correct4

Incorrect-1

Which one of the following types of drugs reduces fever?

A

Analgesic

Antipyretic

C

Antibiotic

D

Tranquiliser

Explanation


Q 6.    

Correct4

Incorrect-1

An azo dye is fixed on fabrics by the process applicable in

A

Vat dyes

B

Mordant dyes

Developed dyes

D

Substantive dyes

Explanation

Q 7.    

Correct4

Incorrect-1

Red ink is prepared from

A

Phenol

B

Aniline

C

Congo red

Eosin

Explanation

Q 8.    

Correct4

Incorrect-1

The blue print process involves the use of

A

Indigo dyes

B

Vat dyes

lron compounds

D

Zinc compounds

Explanation

Q 9.    

Correct4

Incorrect-1

An azo dye is formed by interaction of an aromatic diazonium chloride with

A phenol

B

An aliphatic primary amine

C

Benzene

D

Nitrous acid

Explanation

Q 10.    

Correct4

Incorrect-1

Alizarin belongs to the class of

A

Vat dyes

Mordant dyes

C

Substantive dyes

D

Reactive dyes

Explanation


Q 11.    

Correct4

Incorrect-1

An insoluble coloured compound formed by action of metallic salts on dyes is known as

Lake

B

Mordant

C

Dye intermediate

D

None of these

Explanation

Q 12.    

Correct4

Incorrect-1

Alizarin dye obtained from the root of madder plant is anthraquinone derivative. Its structure corresponds to

{tex} 1, 2 {/tex}-dihydroxy anthraquinone

B

{tex} 2, 3 {/tex}-dihydroxy anthraquinone

C

{tex} 1, 4 {/tex}-dihydroxy anthraquinone

D

{tex} 1 {/tex}-hydroxy anthraquinone

Explanation

Q 13.    

Correct4

Incorrect-1

To which class of dyes does phenolphthalein belong

A

Azo dyes

B

Nitro dyes

C

Triphenyl methane dyes

Phthalein dyes

Explanation

Q 14.    

Correct4

Incorrect-1

Alizarin a mordant dye is not used in

A

Cotton dyeing

B

Printing

Painting

D

Chromium lakes for wood dyeing

Explanation

Q 15.    

Correct4

Incorrect-1

The rose odour from an ester is formed by the action of {tex} H C O O H {/tex} on

A

Pine oil

B

Olive oil

Geraniol

D

Turpentine oil

Explanation

Q 16.    

Correct4

Incorrect-1

Which of the following is dye

A

Methyl orange

B

Orange 1

C

Aniline yellow

All of these

Explanation

Q 17.    

Correct4

Incorrect-1

Which of the following is an example of basic dye

A

Alizarin

Malachite green

C

Indigo

D

Orange 1

Explanation

Q 18.    

Correct4

Incorrect-1

Which of the following is a direct dye

A

Phenolphthalein

Congo red

C

Alizarin

D

lndigo

Explanation

Q 19.    

Correct4

Incorrect-1

Which of the following is a vat dye and often used in dyeing jeans

Indigo

B

Alizarin

C

Picric acid

D

Crystal violet

Explanation

Q 20.    

Correct4

Incorrect-1

Which of the following is not a chromophore

A

{tex} - N = N - {/tex}

B

{tex} - N O {/tex}

C

{tex} - N O _ { 2 } {/tex}

{tex} - N H _ { 2 } {/tex}

Explanation

Q 21.    

Correct4

Incorrect-1

The compounds used to fix a dye to the fabric is known as

Mordant

B

Azeotrope

C

Bleaching agents

D

Lake

Explanation

Q 22.    

Correct4

Incorrect-1

Which one is disperse dye

A

Congo red

B

Alizarin

Celliton

D

None of these

Explanation

Q 23.    

Correct4

Incorrect-1

Malachite green is a direct dye for silk and wool. It is prepared by condensing

Benzaldehyde and dimethyl aniline

B

Carbonyl chloride and dimethyl aniline

C

Benzene diazonium chloride with dimethyl aniline

D

None of the above

Explanation

Q 24.    

Correct4

Incorrect-1

Fluorescin, a well known dye is obtained by the reactions of

A

Phthalic anhydride and phenol

Phthalic anhydride and resorcinol

C

Succinic acid and resorcinol

D

Phthalic anhydride and catechol

Explanation

Q 25.    

Correct4

Incorrect-1

Indigo shows cis-trans isomerism. Which is the stable form of Indigo

A

Cis

Trans

C

Either cis or trans

D

Both of the above

Explanation