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CBSE Notes 2011-2012 » XI-Chemistry

The p-Block Elements

Name two allotropes of boron.

Short answer question

Name two allotropes of boron.

Why does boron not form B3+ ion ?

Short answer question

Why does boron not form B3+ ion ?

Why is crystalline boron hard solid ?

Short answer question

Why is crystalline boron hard solid ?

Why is boron used in nuclear reactors ?

Short answer question

Why is boron used in nuclear reactors ?

What is tincal ? Give its chemical formula.

Short answer question

What is tincal ? Give its chemical formula.

Why does boron resemble Si ?

Short answer question

Why does boron resemble Si ?

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