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Boron is a : metal, non-metal, metalloi...

Boron is a : metal, non-metal, metalloid, alloy

A

metal

B

non-metal

C

metalloid

D

alloy

Text Solution

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The correct Answer is:
B
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V PUBLICATION-THE p - BLOCK ELEMENTS-QUESTION BANK
  1. Boric acid is polymeric due to -----

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  2. The Elements of group 14 show ----- oxidation states

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  3. Boron is a : metal, non-metal, metalloid, alloy

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  4. Explain the action of heat on boric acid.

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  5. The compounds of boron with hydrogen are called : borides, boranes, di...

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  6. Orthoboric acid on strong heating to red hot gives. metaboric acid bo...

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  7. Glass is best described as a,: solid, liquid, supercooled liquid, ...

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  8. The aqueous solution of borax is

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  9. The allotropic form of carbon which is used for making lead of pencil...

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  10. The gas which combines with haemoglobin to damage is oxygen- carrying ...

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  11. The carbide which is used as abrasive is, (1)WC (2)CaC2 (3)Al4 C3 (...

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  12. Pyrosilicates are the silicates in which two tetrahedral units are lin...

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  13. A l^(3+)' is not isoelectronic with (1)Ne (2)Na^+ (3)F^- (4)Ca^2+

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  14. Which one of the following elements has the highest melting point? (1)...

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  15. Orthoboric acid, H3BO3 is a

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  16. The hybridisation of boron in 'B F3' and 'BF4' respectively is sp^2, s...

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  17. Amorphous form of silica is : tridynite, cristobalite, fumed silica, ...

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  18. In silicon dioxide : each siliçon atom is surrunded by four oxygen ato...

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  19. Carborundum is

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  20. Which of the following statement about boric acid is false. : It acts ...

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