$A g N O_{3}$ gives white ppt. with hypo changing to black after some-time. Black ppt is of :

A g_{2} S_{2} O_{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

A g_{2} S O_{4}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

A g_{2} S_{4} O_{6}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

A g_{2} S

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $A g_{2} S$
Reaction:
$2 A g N O_{3} + N a_{2} S_{2} O_{3} \to A g_{2} S_{2} O_{3} + 2 N a N O_{3}$
If hypo is taken in a limited amount, then this happens. The Ag thiosulphate thus formed goes through a change of colour (termed as 'play of colour').
$A g_{2} S_{2} O_{3} (w h i t e) \to y e l l o w \to o r a n g e \to b r o w n \to b l a c k (A g_{2} S p p t .)$

Suggest Corrections

Similar questions

{A g}_{2} S O_{4}

gives white ppt with hypo changing to black after sometime. Black ppt is of

Q. Hypo gives white

({A g}_{2} S_{2} O_{3})

ppt with

{A g N O}_{3}

which changes to black

({A g}_{2} S)

If the given statement is true enter 1 else 0.

Q. Aqueous solution of A can dissolve

A g B r

forming a soluble complex B. A also reacts with aqueous

{A g N O}_{3}

solution giving white ppt. C changing to black ppt D. (A) is the hypo solution

(N a_{2} S_{2} O_{3})

, (B) is

N a_{3} [A g (S_{2} O_{3})_{2}]

, (C) is

A g_{2} S_{2} O_{3}

and (D) is

A g_{2} S

.
If true enter 1, else enter 0.

Q. Which of the following metal chloride gives white ppt. and black ppt. respectively with aqueous solution of gas [B]?

To an aqueous solution of $A g N o_{3}$ some NaOH (aq) is added, till a brown ppt. is obtained. To this $H_{2} O_{2}$ is added dropwise. The ppt. turns black with the evolution of $O_{2}$ . The black ppt. is

Join BYJU'S Learning Program

AgNO3 gives white ppt. with hypo changing to black after some-time. Black ppt is of :

The correct option is D Ag2SReaction:2AgNO3+Na2S2O3→Ag2S2O3+2NaNO3If hypo is taken in a limited amount, then this happens. The Ag thiosulphate thus formed goes through a change of colour (termed as 'play of colour').Ag2S2O3(white)→yellow→orange→brown→black(Ag2S ppt.)

$A g N O_{3}$ gives white ppt. with hypo changing to black after some-time. Black ppt is of :