Home
Class 12
CHEMISTRY
Assertion : Zr and Hf occur together in ...

Assertion : Zr and Hf occur together in nature andare difficult to separate.
Reason : Zr and Hf have identical radii due to lanthanide contraction.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true and reason not is the correct explanation of assertion.

C

If assertion is trun but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • THE D- AND F- BLOCK ELEMENTS

    NCERT FINGERTIPS|Exercise NCERT Exemplar|21 Videos
  • SURFACE CHEMISTRY

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos
  • THE P-BLOCK ELEMENTS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

Zr and Hf have identical sizes. Elaborate.

Assertion: Variations present in pureline is due to environment. Reason: Pureline have identical genotype.

Assertion (A) Separation of Zr and Hf is difficult. Reason (R ) Because Zr and Hf lie in the same group of the Periodic Table.

Assertion : Inspiration occurs due to muscular relaxation. Reason : During inspiration, the diaphragm and external intercostal muscle contract simultaneously.

How would you account for the following? (l) Transition metals exhibit variable oxidation states. (ii) Zr (Z = 40) and Hf (Z = 72) have almost identical radii. (iii) Transition metals and their compounds act as catalyst.