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Assertion : Boron forms only covalent co...

Assertion : Boron forms only covalent compounds. ,
Reason : Boron has very small size.

A

Statement-1 is true, statement-2 is true, statement-2 is a correct explanation for statement-1

B

Statement-1 is true, statement-2 is true, statement-2 is not correct explanation for statement-1

C

Statement-1 is true, statement-2 is false

D

Statement-1 is false, statement-2 is true

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Assertion : Among alkaline earth metals, Be predominantly forms covalent bond. Reason : Be is smaller in size and hence has greater polarising power.

    A
    both assertion and reason are true and reason is the correct explanation of assertion.
    B
    both assertion and reason are true but reason in not the correct explanation of assertion.
    C
    assertion is true but reason is false.
    D
    both assertion and reason are false.
    • AAKASH INSTITUTE ENGLISH-THE P-BLOCK ELEMENTS-Assignment Section-E)
    1. Assertion : Boron forms only covalent compounds. , Reason : Boron ha...

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    2. Statement-1: White P is considered as the elemental state of P. Stat...

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    3. Statement-1: Aluminium chloride has chloro-bridged structure in vapour...

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    4. Statement-1: B(OH)(3) behaves as a lewis acid. Statement-2: Second i...

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    5. Statement-1: B does not form [BF(6)]^(3-) Statement-2: Co-ordination...

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    6. Statement-1: B(2)H(6) on heating with excess of ammonia forms boron ni...

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    7. Statement-1: BCl(3) and C Cl(4) do not undergo hydrolysis. Statement...

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    8. Statement-1: Silicones are used as high class industrial insulators. ...

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    9. Statement-1: Pyro-silicates are 1-D polymers. Statement-2: In pyro-s...

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    10. Statement-1: Inter-stitial carbides are formed when heavy metals react...

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    11. Assertion: All clatharate compound of noble gas are the compounds in w...

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    12. Assertion:PCl(5) is covalent in gaseous and liquid states but ionic in...

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    13. Statement-1: Bond energy of Hl is smaller than that of HBr. Statemen...

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    14. Statement-1: NCl(3) is hydrolysed by water by NF(3) is not hydrolysed....

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    15. Statement-1: Peroxomonosulphuric acid has low basicity. Statement-2:...

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    16. Statement-1: HF is weaker acid than HCl. Statement-2: F^(-) has high...

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    17. Statement-1: IC l(2)^(Theta) is a linear compound. Statement-2: In I...

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    18. Statement-1: NH(3) is more basic than NF(3) Statement-2: F is more e...

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    19. Statement-1: H(2)S is weak diprotic acid. Statement-2: Salt of aq. N...

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    20. Statement-1: All noble gases are considered as unreactive. Statement...

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