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Joined:	17 May 2007
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13 Apr 2009 17:14:19 IST

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i iit 2009 paper the multi answer question for products formed on combustion of na is ambiguous .it

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i iit 2009 paper the multi answer question for products formed on combustion of na is ambiguous .it is only mentioned excess of air which means there could have been moisture and hence naoh could have been formed.fiitjee mentions dry air in the solution but i could claim moist ai

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djdylan2000. bits goa eee

Blazing goIITian

Joined: 7 Feb 2007

Posts: 1608

13 Apr 2009 17:50:11 IST

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Thats exactly wht i was confused about. I also ticked ABD... I assumed air contains enuff moisture to get NaOH also... am losing 1 mk cuz of d neg marking if jee assumes it 2 b dry air :(

kanika khanna

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Joined: 26 Jun 2007

Posts: 42

15 Apr 2009 12:44:40 IST

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just read ur ncert books class X1 s block it is clearly written that the products are peroxide and superoxide of sodiumall coaching institutes have given a and b as the answer which is wrong acc to me

djdylan2000. bits goa eee

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15 Apr 2009 12:50:30 IST

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no, superoxide is for K Rb and Cs, not for Na

Abram Benny

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Joined: 2 Apr 2008

Posts: 157

15 Apr 2009 14:21:46 IST

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traces of superoxide is formed for Na too... that's what messed my answer up...

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