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CBSE Notes 2011-2012 » XI-Chemistry

Chemical Bonding and Molecular Structure

Why is NaCl harder than sodium metal ?

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Why is NaCl harder than sodium metal ?

Define covalency of an element.

Short answer question

Define covalency of an element.

Sodium chloride solution gives a precipitate of AgCl with AgN03 whereas CC14 does not, why ?

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Sodium chloride solution gives a precipitate of AgCl with AgN03 whereas CC14 does not, why ?

Why is water liquid whereas H2S gas at room temperature ?

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Why is water liquid whereas H2S gas at room temperature ?

Although very useful in a large number of cases, the octet rule has many exceptions. Give two exampl...

Short answer question

Although very useful in a large number of cases, the octet rule has many exceptions. Give two examples to support this statement.

Why does He2 not exist ?

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Why does He2 not exist ?

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