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The correct order of atomic radii in gro...

The correct order of atomic radii in group-13 elements is-

A

B lt Ga lt Al lt In lt Tl

B

B lt Al lt In lt Ga lt Tl

C

B lt Ga lt Al lt Tl lt In

D

B lt Al lt Ga lt In lt Tl

Text Solution

Verified by Experts

The correct Answer is:
A

Due to the wealc screening effect of d -orbital, atomic radius of Ga is less than that of Al .
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CHHAYA PUBLICATION-SOME p-BLOCK ELEMENTS-ENTRANCE (QUESTION BANK)
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  2. Which of the following structure is similar to graphite -

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  3. The basic structural unit of silicate is -

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  8. Which one of the following elements is unable to form MF6^(3-) ion-

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  10. The wrong statement about fullerene is-

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  11. Iodine oxidises sodium borohydride to give-

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  12. Which material is used as a neutron moderator-

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  13. For silicone which is not correct -

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  14. Which of the following is not sp^2 -hybridised

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  15. The pair of amphoteric hydroxides is -

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  17. Select the correct options from the following

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  18. Among the following substituted silanes, the one which will.give rise ...

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