MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Reactivity with Halogens and Hydrogen (Group 2)

A light green...

Question

A light green colored salt soluble in water gives black precipitate on passing $H_{2} S$ which dissolves readily in $H C l$ . The metal ion present is :

A

C o^{2 +}

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

B

F e^{2 +}

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

C

N i^{2 +}

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

D

A g^{+}

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

Open in App

Solution

The correct option is A $F e^{2 +}$
Option (B) is correct.
The metal ion present is $F e^{2 +}$ .
$F e S$ is soluble in $H C l$ . Also $F e^{2 +}$ salts are green.

Suggest Corrections

thumbs-up

0

Similar questions

Q. A pale green crystalline metal salt of

(X)

dissolves freely in water. It gives a brown precipitate on the addition of

a q . N a O H

. The metal salt solution also gives a black precipitate on bubbling

H_{2} S

in aqueous medium. An aqueous solution of the metal salt decolorizes the pink color of the permangnetic solution. The metal in the metal salt solution is:

Q. An aqueous solution of a substance gives a white precipitate on treatment with dil

H C l

, which dissolved on heating. On passing

H_{2} S

in hot acidic solution a black precipitate is formed. The substance is:

Q. A coloured precipitate is obtained when

H_{2} S

gas is passed through an aqueous solution of a salt in the presence of ammonium hydroxide. The precipitate dissolves in dilute

H C l

and reacts with

N a O H

to give white precipitate which on standing turns into a brown/black mass. The brown/black mass on fusion with

K N O_{3}

N a_{2} C O_{3}

gives green mass. The cation of the salt is:

Q. A white crystalline substance dissolves in water. On passing

H_{2} S

in this solution, a black precipitate is obtained. The black precipitate dissolves completely in hot

H N O_{3}

. On adding few drops of concentrated

H_{2} S O_{4}

, a white precipitate is obtained which is soluble in ammonium acetate. The white precipitate is that of

C u^{2 +}

N i^{2 +}

C o^{2 +}

M n^{2 +}

, of those that dissolve in

d i l . H C l

, only one gives a precipitate when

H_{2} S

is passed. Identify the corresponding other which do not gives precipitation.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Group 2 Chemical Properties

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Reactivity with Halogens and Hydrogen (Group 2)

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon