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ANALYTICAL/GENERAL CHEMISTRY(ICSE)

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PostSubject: ANALYTICAL/GENERAL CHEMISTRY(ICSE) ANALYTICAL/GENERAL CHEMISTRY(ICSE) EmptyThu Feb 10, 2011 6:03 pm

a good question with answer for icse

Three colourless gas A,B and C can reduce coper(II)oxide to copper metal.In case of A,the product of reaction are copper and water.In case of B,the product of reaction are copper metal and carbon dioxide.In case of C, the product of reaction are copper metal,water and nitrogen gas.
Identify A,B and C .Write filly balanced chemical reaction in support of your answer.

Ans.
A is hydrogen gas.
CuO + H2 -----> Cu + H2O
B is carbon monoxide gas
CuO + CO ----> Cu + CO2
C is ammonia gas
3CuO + 2NH3 ---> 3Cu + 3H2O + N2
last reaction is very important please memorize it
for more practical question
you can follow following link

http://foricse.blogspot.com/2011/02/practice-questions-for.html
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