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Physics, Chemistry and Biology: Post your doubts here!

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See,
The number of squares covered by leaf is approx. 55.5.
The number of squares covered by that white larva tunnels is approx. 15.
So percent comes out to be 26%
 
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I am really confused with colour changes of "potassium manganate(v11)" . I know that it changes to colorless with acids and it is originally purple :rolleyes:
But sometimes it changes to pink ,brown or colourless. :unsure:
Can someone PLZ make it clear to me, & and I will be very thankful. :D
 
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See,
The number of squares covered by leaf is approx. 55.5.
The number of squares covered by that white larva tunnels is approx. 15.
So percent comes out to be 26%

thnks ... hopfully there was no question lyk tis today......phew...........
 
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I am really confused with colour changes of "potassium manganate(v11)" . I know that it changes to colorless with acids and it is originally purple :rolleyes:
But sometimes it changes to pink ,brown or colourless. :unsure:
Can someone PLZ make it clear to me, & and I will be very thankful. :D

Manganese is oxidised to different states , these different oxidation numbers have different colours , manganese (II) is brown in colour
 
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Many a times in ATP they ask :
Describe the
appearance of the filtrate.

Please tell me how to determine the colour of the solutiom......
 
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