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How was Chemistry P1/2

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carbohydrate and that lead bromide
i chose the graphite rod one because in ANY electrolysis, electrons are given out.. so in all those three extra energy was going to bulb.. only in the graphit one the energy was same as provided by the cell because it was just completing the circuit...:confused:
 
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ap mark scheme mein dkh lena yehi hoga answer...........
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hahaha u wish man :) !!! i have done a similar mcq about 4-5 times !! i'll let u knw the year soon and than say anything !! i have clear chemistry concepts that's why i am sure :)
 
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i chose the graphite rod one because in ANY electrolysis, electrons are given out.. so in all those three extra energy was going to bulb.. only in the graphit one the energy was same as provided by the cell because it was just completing the circuit...:confused:
lol the answer was definitely Mercury. No doubt in that.
 
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I an IV

what was the answer to 'which reagent could be used to diferrenciate between dil. Nitric acid and dil. HCL?' I know it's a past paper question but i forgot what the answer was to it. Was it barium chloride or silver nitrate?

silver chloride if i remember correctly...
 
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i chose the graphite rod one because in ANY electrolysis, electrons are given out.. so in all those three extra energy was going to bulb.. only in the graphit one the energy was same as provided by the cell because it was just completing the circuit...:confused:
yeah same yar!! :D
 
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I an IV

what was the answer to 'which reagent could be used to diferrenciate between dil. Nitric acid and dil. HCL?' I know it's a past paper question but i forgot what the answer was to it. Was it barium chloride or silver nitrate?
i thnk it was copper carbonate bcz copper chloride is green in colour and copper nitrate is blue.........
 
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all other three were good conductors so this can only be the answer........
if it doesn't conduct, how can the bulb light at all.. it said k least bright... i chose A, the graphite one because it was acting as a circuit completer
 
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hahaha u wish man :) !!! i have done a similar mcq about 4-5 times !! i'll let u knw the year soon and than say anything !! i have clear chemistry concepts that's why i am sure :)
k lets see.............
clear chemistry concepts u gonna get dstinction in chem rite ! lolX:ROFLMAO:
 
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