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flue gas desulfurisation involves CaCO3 which reats with sulphur dioxide to form calcium sulphide and carbon dioxide preventing SO2 from escaping into air as it might cause acid rain!..
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Biology; Chemistry; Physics: Post your doubts here!
- Thread starter scouserlfc
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By the look of things it seems Chemistry MCQ's are alot difficult than the Theory!
Damn! It means i wasted my time doing Theory Papers for one complete day!
Damn! It means i wasted my time doing Theory Papers for one complete day!
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yeah right....i got 10 wrong the last time i did them just coz i was goin to the depth which wasnt required....
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its A
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thanx buddyflue gas desulfurisation involves CaCO3 which reats with sulphur dioxide to form calcium sulphide and carbon dioxide preventing SO2 from escaping into air as it might cause acid rain!..
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As a matter of fact, i'm worst in MCQ's! 75-79% IS what i normally get! Any tips on that?yeah right....i got 10 wrong the last time i did them just coz i was goin to the depth which wasnt required....
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studybuddy
............go study from there n do as many pastpapers as you can..daz all
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Thanksstudybuddy
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no prob
http://www.xtremepapers.com/papers/...al O Level/Chemistry (5070)/5070_s06_qp_2.pdf QA1iii it sais almunium oxide in ms shouldnt it be almunium or nitrogen
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How to find the focal length?
Below is my guess, correct me if i'm wrong!
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Keep objects at varying lengths from the lens, wherever the the image formed is of the same size as the object that distance should be marked.
That distance should be 2F! Halving it would give the focal length!
Below is my guess, correct me if i'm wrong!
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Keep objects at varying lengths from the lens, wherever the the image formed is of the same size as the object that distance should be marked.
That distance should be 2F! Halving it would give the focal length!
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I get like 35-36 in MCQs in Chemistry .. is that good?
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Thats hell awesome!
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really? i thought it was pretty bad .. considering i was getting 4/5 wrong!
my highest yet is 38/40.
no worries my highest in physics is 35/40 but 40/40 in chem
it decomposes in presence of light to form silver giving it a grey colour and silver ions are being reduced to silver atom and chloride ions oxidized to clorine gas so a redox reaction
nice avatarThanks
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why? could you explain it a bit, like why does it happen? i have never understood that concept myself.
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Hydrogen yeah u are correct..