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Which of the following pair of elements ...

Which of the following pair of elements have same radii?

A

Zr,Hf

B

Sc,Y

C

La,Ac

D

Zn,Cd

Text Solution

Verified by Experts

The correct Answer is:
A
`Zr` and Hf have same radii due to lanthanide contraction.
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NARAYNA-D BLOCK & TRANSITION ELEMENTS-Level-I
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  2. Each of the following ion contains vanadium the +5 oxidation state exc...

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  3. Which of the following pair of elements have same radii?

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  4. The radii (metallic) of Fe,CO and Ni are nearly same. This is due to...

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  5. Which of the following ion is coloured in its aqueous solution?

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  6. Transition metals are coloured due to the following electronic transit...

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  7. In which pair, both ions are coloured in aqueous medium

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  8. MnO(4)^(-) is intense pint colour, though Mn is (+7) oxidation state, ...

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  9. VO(4)^(-), CrO(4)^(2-) and MnO(4)^(-)are pale yellow, strong yellow an...

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  10. Which is not true statement?

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  11. The catalyst used in the oxidation of 1^(@) alcohol to aldehydes

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  12. Name the catalyst and promoter in the Haber's process for the manufact...

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  13. In a transition series, as the atomic number increases, paramagnetism

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  14. Paramagnetism is not exhibited by

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  15. The magnetic moment of the complex [Ti(H(2)O)(6)]^(3+) is

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  16. The ratio of magnetic moment of Fe(III) and Co(II) is :

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  17. The ion having maximum magnetic moment is

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  18. The following metal shows ferromagnetic nature

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  19. For a paramagnetic substance, the field strength of substance (B) and ...

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  20. Which of the following element form interstitial compounds?

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