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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.
the value of plank''s constant
s block
Q. Example to show scientific notation? Solve the following problem. 2.45 *10 14 kg + 4.00 * 10 12 kg First articulate both quantities to the same power of ten. Either
why boron have maximum covalency 4 and others have maximum covalency 6
Use the given data to construct a thermodynamical Born-Haber-cycle of the formation of potassium chloride from its elements and calculate the lattice energy of potassium chloride.
Properties of Styrene Styrene is a colourless liquid, boiling point 145°C. On keeping, it slowly changes into a solid polymer known as meta styrene. The polymerisation is fast
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chemical laws and their verification
Carbon And its Compounds Carbon is a typical non-metal present in earth's crust to the extent of 0,02% by mass. All living organisms contain carbon and hydrogen as their ess
Hi, I was wondering what the structure of semi synthetic and synthetic polymers were? I have an assignment due tomorrow and I cannot find any information on them! Thanks
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