CameraIcon

SearchIcon

MyQuestionIcon

144

You visited us 144 times! Enjoying our articles? Unlock Full Access!

Colour and Solubility

A solution of...

Question

A solution of metal ion when treated with KI gives a red precipitate which dissolves in excess KI to give a colourless solution. Moreover, the solution of metal ion on treatment with a solution of cobalt(II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion is :

A

P b^{2 +}

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

B

H g^{2 +}

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

C

C u^{2 +}

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

D

C o^{2 +}

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

Open in App

Solution

The correct option is A $H g^{2 +}$
A solution of metal ion when treated with $K I$ gives a red precipitate which dissolves in excess $K I$ to give a colourless solution. Moreover, the solution of metal ion on treatment with a solution of cobalt(II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion is $H g^{2 +}$ .

$H g_{2} + K I \to H g I_{2} (red ppt)$

$H g I_{2} + K I \to K_{2} H g I_{4}$

$(S C N)_{2} \to H g (S C N)_{2} (blue crystalline precipiates )$

Suggest Corrections

thumbs-up

0

Similar questions

Q. A solution of metallic ion when treated with

K I

gives a red precipitate which dissolves in excess of

K I

to give a colourless solution. Moreover, the solution of metal ion on treatment with solution of cobalt(II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion is:

Q. A solution of a metal ion when treated with KI gives a red precipitate which dissolves in excess KI to give a colourless solution. Moreover, the solution of metal ion on treatment with a solution of cobalt (II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion is:

Q. A solution of a metal ion when treated with

K I

gives a red precipitate which dissolves in excess

K I

to give a colorless solution. Moreover, the solution of metal ion on treatment with a solution of cobalt

(I I)

thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion is :

Q. A solution of a metal ion, when treated with KI, gives a red precipitate which dissolves in an excess of KI to give a colourless solution. Moreover, the solution of the metal ion on treatment with a solution of cobalt (II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ions is:

Q. A solution of

H g^{2 +}

ion on treatment with a solution of cobalt(II) thiocyanate gives rise to a deep blue crystalline precipitate, then the coordination number of mercury in the deep blue colored compound is :

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Colour and solubility

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Colour and Solubility

Standard X Chemistry

Join BYJU'S Learning Program

CrossIcon