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III A group element with highest density...

III A group element with highest density is

A

B

B

Al

C

In

D

Tl

Text Solution

Verified by Experts

The correct Answer is:
D
On moving down in the group, densities increases, because increase in atomic mass is more than increase in atomic volume.
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AAKASH SERIES-ELEMENTS OF BORON FAMILY-LECTURE SHEET (EXERCISE - I) LEVEL - II (ADVANCED)
  1. Which of the following is used in high temperature thermometry ?

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  2. The electropositive character increases from B to Al and then decrease...

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  3. III A group element with highest density is

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  4. Electronegativity is least for

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  5. The hybridisation of boron in ortho boric acid is

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  6. Boric acid (H(3)BO(3)) has

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  7. Boric acid is polymer due to

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  8. Least basic among the following is

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  9. H(3)BO(3)overset(" Redhot ")rarr X. 'X' in the reaction is

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  10. Which of the following does not exist ?

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  11. The following has a potential to be used as a rocket fuel

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  12. Stability of monovalent and trivalent cations of Ga, In, Tl lie in the...

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  13. When metal carbides react with H(2)O, the correct equations are

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  14. Which of the following statements are true for H(3)BO(3) ?

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  15. Which of the following statements(s) is/are correct regarding the stru...

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  16. Al and Ga have nearly the same covalent radius, incorrect reason is

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  17. Borazine is called 'inorganic benzene' in view of its ring structure w...

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  18. ln which of the following molecules, vacant orbitals cake part in hybr...

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  19. Orthoboric acid (H(3)BO(3)) and metaboric acid (HBO(2)) differ in resp...

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  20. BF(3) is

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