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Which of the pairs have almost similar s...

Which of the pairs have almost similar size ?

A

`._22Ti and ._40Zr`

B

`._41Nb and ._73Ta`

C

`._39Y and ._57La`

D

`._20Caand ._31Ga`

Text Solution

Verified by Experts

The correct Answer is:
B
Due to lanthanide contraction `._41Nb` and ._73Ta` have almost similar size.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-PRACTICE SET 02-Paper 1 (Chemistry )
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  3. Which of the pairs have almost similar size ?

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  5. Which of the following is the most powerful oxidising agent ?

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  6. Sulphur on boiling with NaOH solution gives

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  7. The volume of oxygen evolved at STP by decomposition of 0.68g '20 volu...

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  8. Coordination compounds are the compounds in which the central metal at...

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  9. To correct the order of stability of group II A metal carbonates is

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  10. Which of the following test is not carried out of example the presence...

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  11. The number of primary, secondary and tertiary carbons in 3,4-dimethylh...

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  12. The reaction of chloroform with alcoholic KOH and p- toluidine forms

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  13. The enzyme which can catalyse the conversion of glucose to ethanol is

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  14. Which among the following free radicals is most stable

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  16. Which one of the following halogens forms only one oxo acid ?

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  18. The complex ion [Cu(NH3)4]^(2+) is

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