Sodium thiosulphate is prepared by...

Sodium thiosulphate is prepared by

A

reducing `Na_(2)SO_(3)` solution with `H_(2)S`

B

Boiling `Na_(2)SO_(3)` with S in alkaline medium

C

Neutralising `H_(2)S_(2)O_(3)` solution with NaOH

D

Boiling `Na_(2)SO_(3)` with S in an acidic medium

Text Solution

Verified by Experts

The correct Answer is:

B

`Na_(2)SO_(3) + S underset(OH^(-))overset("Boiling")rarr Na_(2)S_(2)O_(3)`

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Sodium thiosulphate is used in photography

Sodium thiosulphate is used in photography

Knowledge Check

Statement -1 : Sodium thiosulphate is not prepared by boiling Na_(2)SO_(3) with S in acidic medium. Statement -2 : Na_(2)S_(2)O_(3)+H^(+) to 2Na++H_(2)SO_(3)+Sdarr

A

Statement -1 is true , Statement-2 is true, Statement-2 is a correct explantion for Statement -1.

B

Statement -1 and Statement- 2 both are False.

C

Statement -1 is true, Statement- 2 is false.

D

Statement -1 is true, Statement- 2 is false.

Sodium thiosulphate can be prepared by

A

Boiling `Na_(2)SO_(3)` solution with sulphur in acidic medium

B

Boling an aqueous solution of NaOH with sulphur

C

Neutralising `H_(2)SO_(4)` with NaOH

D

Boiling `Na_(2)SO_(3)` with sulphur in alkaline medium

Sodium chromate is prepared by fusing

A

sodium dichromate with carbon

B

`(NH_(4))_(2)Cr_(2)O_(7)` with sodium hydrogen sulphate in introgen

C

chromite `(Fecr_(2)O_(4))` with sodium hydroxide in air.

D

chromite `(FeCr_(2)O_(4))` with sodium chloride in air.

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Sodium thiosulphate is formed when:

Sodium thiosulphate is used in photography

In photography, sodium thiosulphate is used as

In photography, sodium thiosulphate is used as

STATEMENT-1: Sodium thiosulphate is used in photography and STATEMENT-2: Sodium thiosulphate is photosensitive.

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