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CBSE Notes 2011-2012 » XI-Chemistry

Hydrogen

Which compounds cause temporary hardness of water ?

Short answer question

Which compounds cause temporary hardness of water ?

Explain why H202 cannot be stored for prolonged periods.

Short answer question

Explain why H202 cannot be stored for prolonged periods.

Why NH3 has a higher boiling point than PH3 ?

Short answer question

Why NH3 has a higher boiling point than PH3 ?

Why is position of hydrogen in periodic table not justified ?

Short answer question

Why is position of hydrogen in periodic table not justified ?

What is use of hydrogen in manufacture of vanaspati ghee ?

Short answer question

What is use of hydrogen in manufacture of vanaspati ghee ?

Why does hard water react with soap ?

Short answer question

Why does hard water react with soap ?

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