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The statements regarding 'B' and Al are ...

The statements regarding 'B' and Al are
I) Boron is a bad conductor of heat and electricity
II) Aluminium hydrides are stable
III) Maximum covalency of Boron is 4
The correct statements are 

A

Only I is correct

B

I and III are correct

C

All are correct

D

III is only correct

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-ELEMENTS OF BORON FAMILY-OBJECTIVE EXERCISE - 2
  1. H(3)BO(3)overset("Red heat")rarrX.X in the reaction is

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  2. The element of IIIA group with least density

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  3. The statements regarding 'B' and Al are I) Boron is a bad conductor ...

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  4. The correct order of melting points of IIIA group elements is

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  5. The IIIA group clement that does not displace hydrogen from hydrochlor...

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  6. 2X+6LiHoverset(450K)rarr B(2)H(6)+Y. The compounds, X and Y are

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  7. Among the III A group elements, the difference in the atomic radius is...

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  8. The correct order of ionization potential [IP(1)] among the IIA group ...

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  9. (A) : Increase in the atomic radius from B to Al is more than that of ...

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  10. Which of the following does not undergo hydrolysis?

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  11. The product formed in the reaction BCl(3)+H(2)Orarr

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  12. The correct increasing order of the stability of Al, Ga^(+), In^(+), T...

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  13. In the electrolysis of alumina using cryolite, the reaction that takes...

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  14. Hydrogen gas is liberated when aluminium is treated with A) Air B)...

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  15. Which of the following is weakest Lewis acid ?

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  16. Aluminium reacts with concentrated H(2)SO(4) to liberate SO(2) gas. In...

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  17. In the reaction between boron and sodium hydroxide to liberate hydroge...

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  18. Strongest oxidant among the following is

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  19. Electronegativity of aluminium is 1.5. Electro negativity of thallium ...

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  20. The products formed when boron trichloride is reduced with lithium alu...

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