Home
Class 12
CHEMISTRY
If NaOH is added to an aqueous solution ...

If NaOH is added to an aqueous solution of `Zn^(2+)` ions a white precipitate apperars and on adding excess of NaOH, the precipitate dissolves. In this solution Zinc exists in_____

A

cationic part.

B

anionic part.

C

both in cationic and anionic parts.

D

there is no zinc left in the solution.

Text Solution

Verified by Experts

The correct Answer is:
B
`Zn^(2+)+2NaOH rarr 2Na^(+)+Zn(OH)_(2)`
`Zn(OH)_(2)+2NaOH rarr Na_(2)ZnO_(2)+2H_(2)O`
Thus `Na_(2)ZnO_(2)" forms "2Na^(+) and [ZnO_(2)]^(2-)` ions.
Promotional Banner

Topper's Solved these Questions

  • THE s-BLOCK ELEMENTS

    DISHA PUBLICATION|Exercise Exercise - 1 : Concept Builder (Topicwise)(TOPIC 3 : Preparation and Properties of Alkaline Earth Metals and their Compounds)|12 Videos

  • THE s-BLOCK ELEMENTS

    DISHA PUBLICATION|Exercise Exercise - 1 : Concept Builder (Topicwise)(TOPIC 4 : Some Important Compounds of Calcium)|6 Videos

  • THE s-BLOCK ELEMENTS

    DISHA PUBLICATION|Exercise Exercise - 1 : Concept Builder (Topicwise)(TOPIC 1 : Preparation and Properties of Alkali Metals and their Compounds)|31 Videos

  • THE P-BLOCK ELEMENTS (GROUP 15, 16, 17 & 18)

    DISHA PUBLICATION|Exercise Exercise|110 Videos

  • THE SOLID STATE

    DISHA PUBLICATION|Exercise EXERCISE -2 : CONCEPT APPLICATOR|30 Videos

Similar Questions

Explore conceptually related problems

If NaOH is added to an aqueous solution of Zn^(+2) ions white precipitate appears and on adding excess NaOH, the precipitate dissolves. In solution zinc is in the

If NaOH is added to an aqueous solution of zinc ions a white ppt appears and on adding excess NaOH , the ppt dissolves. In this solution zinc exist in the

Addition of NaOH on Zn^(2+) ion gives a white ppt. which on addition of excess of NaOH which dissolves . In this solution Zn exists in

When small amount of SnCl_(2) is added to a solution of Hg^(2+) ions, a silky white precipitate is obtained.The silky white precipitate is due to the formation of: