vishnuanandchoudhary Active member
| Subject: ANALYTICAL/GENERAL CHEMISTRY(ICSE) Thu 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 |
|