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 Multiple Choice QuestionsShort Answer Type

1. Name the allotropic forms of boron.
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2.

Name the element of group 13 which forms only covalent compounds.


Boron forms only covalent compounds. For example, BF3, BCl3.
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3.

Which element of group 13 forms amphoteric hydroxide?

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4.

Which element of group 13 forms the most stable +1 oxidation state?

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5.

What is the nature of boron trifluoride?

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6.

What is the structure of diborane?

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7.

Can borax bead test be performed for Ca2+ ion?

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8.

Which is the hardest compound of boron?

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9.

What is inorganic benzene? Write its formula. 

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10.

Boron is unable to form open square brackets BF subscript 6 close square brackets to the power of 3 minus end exponent ion. Explain ?

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