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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.
thermodynamics help to be a good chemist
Coordination number and geometry Binary compounds are ones with two different elements present. 'Simple' crystal structures can be classed as ones in which each atom (or
Number of electrons in -CONH 2 is: (1) 22 (2) 24 (3) 20 (4)28 Ans:24
The total number of electrons present in all the p-orbitals of bromine are: (1) Five (2) Eighteen (3) Seventeen (4) Thirty five Ans: Seve
Difference between Natural rubber and Vulcanized Rubber Natural rubber Vulcanized rubber (1) it is soft and sticky Vulcanized
type of electrode?
#role of boiler feed water
Predicting the feasibility of reaction and does not show the rate of chemical reaction
write a short note on colour and constitution
Preparation of dihydric alcohols
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