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Q. What is chlorophyll?
A magnesium complex of porphyrin is called chlotophyll. the green colouring material in plants and which is essential for photosynthesis.
Hemoglobin, plays the role of oxygen carrier in mammalian blood. In hemoglobin Fe2+ ion is not only surrounded by four nitrogens of porphyrin but the fifth position is occupied by nitrogen of the protein as shown in Fig.
An element L has 9 protons and valency 1. Another element M has valency 3 and 5. What is the difference in the number of electrons in L and M ?
Chloride of metal is MCl 2 . The formula of its phosphate will be: (1) M 2 PO 4 (2) M 3 (Po 4 ) 2 (3) M 2 (
Find te emprical formula for the oxide that contains 42.05 g of nitrogen and 95.95 g of oxygen
why pcl3 and s2cl2 are less polar then sicl4
what is grignard reagent
what are the unique properties of colloids?
There are two conditionfor foramtion of anions a) High Electron affinity b) Small size Less charge of an atoms form anion more simply
what will you observe if you freeze water at 4 degree celcious
names for : A , B , C , D , E , F ,..........., X , Y , Z .
#Difference between AAS and AES
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