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CBSE - XI Science - Chemistry - Environmental Chemistry
For the mcqs having multiple correct answers, what kind of marking scheme is adopted? I mean if i choose only 2 options when 3 options are correct or if i choose one correct option and another wrong option, how will the marks be awarded?
Asked by Renuka Ganesh
20th May 2014,
9:03 AM
CBSE - XI Science - Chemistry - Environmental Chemistry
drop of liquid assumes sperical shape why?
Asked by Aakrati Gawande
27th March 2014,
12:08 PM
CBSE - XI Science - Chemistry - Environmental Chemistry
how so2 cause pollution ? give steps to control it?
Asked by Aakrati Gawande
26th March 2014,
3:38 PM
CBSE - XI Science - Chemistry - Environmental Chemistry
Irritation to the eyes is caused by which pollutant from the following: 1. Sulphor dioxide 2. Ozone 3. PAN 4. Nitrous Oxide
Asked by Akshay Salegaonkar
12th November 2013,
10:56 AM
CBSE - XI Science - Chemistry - Environmental Chemistry
best refresher for class 11 for chemistry
Asked by roopali mishra
3rd June 2013,
6:23 PM
CBSE - XI Science - Chemistry - Environmental Chemistry
which chemistry reference buk i should go for my class 12 cbse board??
Asked by GAURAV PRAKASH
21st March 2013,
8:15 PM
CBSE - XI Science - Chemistry - Environmental Chemistry
what is the structure of cfc?
Asked by Badrinath Mishra
10th February 2013,
3:13 PM
CBSE - XI Science - Chemistry - Environmental Chemistry
how is cfc responsible for depletion of ozone layer?
Asked by Badrinath Mishra
9th February 2013,
10:42 PM
CBSE - XI Science - Chemistry - Environmental Chemistry
what is the effect of pollution on green plants?is it helpful or harmful?
Asked by Badrinath Mishra
9th February 2013,
10:19 PM
CBSE - XI Science - Chemistry - Environmental Chemistry
formula of formaldehyde and peroxyacetyl nitarte
Asked by
28th February 2012,
12:11 PM
