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Biology; Chemistry; Physics: Post your doubts here!

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Thanks everyone...finally got it....
All solids are silvery except copper which is pink
Iodine- purple
Bromine- brown
Chlorine- green
Copper sulphate- blue
Cobalt chloride- pink
Iron sulphate- blue
Magnesium sulphate- white
(sodium,magnesium,calcium) carbonate- white
Sulphur dioxide, carbon dioxide - colourlesss gases
( sodium,magnesium,calcium) oxide - white solid
Iron oxide- blue-black solid
Copper oxide- black solid
 
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All BIOLOGY experts,
please answer this,
The colour of Biuret Solution is Blue(checked from marking scheme),
however i wrote violet any chances of it being correct?
All those who did and didnot get it correct give your opinions
 
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All BIOLOGY experts,
please answer this,
The colour of Biuret Solution is Blue(checked from marking scheme),
however i wrote violet any chances of it being correct?
All those who did and didnot get it correct give your opinions

it only turns violet after it reacts with the Proteins..otherwise it has to be Blue..:)
 
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All BIOLOGY experts,
please answer this,
The colour of Biuret Solution is Blue(checked from marking scheme),
however i wrote violet any chances of it being correct?
All those who did and didnot get it correct give your opinions
dude am reali sori but no.....as said by spidy it goes purple AFTR reactin with protiens or amino acids...!!!
 

asd

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That's to minimize the influence of the surrounding temperature on the temp. actually being measured. :D
It woulda been correct in case it was written oval shaped/pear shaped. If the walls are only thick, how would they magnify? They will only magnify if they were thick at one point and at others thinner, to act as a lens.
 

asd

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I could somehow be wrong, but i don't think i am, because that answer doesn't go with the question.
similarly, answer to 63 also doesn't seem to be appropriate...
 
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