Home
Class 12
CHEMISTRY
In the form of dichromate, Cr(VI) is a s...

In the form of dichromate, Cr(VI) is a strong oxidising agent in acidic medium but Mo(VI) in `Mo0_(3)` and W(VI) in `W0_(3)` are not because

A

Cr(VI) is more stable than Mo(VI) and W(VI)

B

Mo(VI) and W(VI) are more stable than Cr(VI).

C

higher oxidation states of heavier members of group-6 of transition sereis are more stable.

D

lower oxidation states of heavier members of group-6 of transition sereis are more stable.

Text Solution

Verified by Experts

The correct Answer is:
B, C
(b,c) are the correct answers.
Promotional Banner

Topper's Solved these Questions

  • D-AND -F BLOCK ELEMENTS

    DINESH PUBLICATION|Exercise Matchin type questions|7 Videos

  • D-AND -F BLOCK ELEMENTS

    DINESH PUBLICATION|Exercise Assertion and Reason type Questions|5 Videos

  • D-AND -F BLOCK ELEMENTS

    DINESH PUBLICATION|Exercise NCERT Exampler , Multiple Choice Questions|21 Videos

  • CYANIDES, ISOCYANIDES, NITROCOMPOUNDS AND AMINES

    DINESH PUBLICATION|Exercise Unit test - 8|20 Videos

  • ELECTROCHEMISTRY

    DINESH PUBLICATION|Exercise ADDITIONAL NUMERICAL PROBLEMS FOR PRACTICE|12 Videos

Similar Questions

Explore conceptually related problems

Assertion : Cr(VI) in the form of dichromate in acidic medium is a strong oxidising agent where MoO_3 and WO_3 are not. Reason: In d-block elements higher oxidation states are favoured by heavier members.

KMnO_(4) is a strong oxidising agent in acidic medium. To provide acidic medium H_(2)SO_(4) is used instead of HCl. This is because

Potassium dichromate acts as a strong oxidising agent in the acidic medium. When heated with a metal chloride and conc. sulphuric acid, it gives orange red fumes. On passing these fumes through sodium hydroxide, it gives a yellow solution (X) and this acidified solution gives yellow precipitate (Y) with lead acetate. On heating potassium dichromate with KOH, it forms a yellow solution (Z) which on acidification changes to orange colour. Acidified solution of dichromate ion gives deep blue colour with H_2O_2 due to the formation of (P) The oxidation state of Cr in compound P

Assertion : KMn0_(4) is an oxidising agent in neutral, acidic and alkaline medium. Reason : Equivalent mass of KMn0_(4) in acidic medium is 31 ·6.