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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.
Anomolous behaviour of beryllium
Q. Quantum Mechanical Model of the Atom? Ans: Using quantum mechanics, scientists realized that the exact location of an electron could not be determined. Instead, only the p
Which chromium plating is more eco-friendly - trivalent or Hexavalent? Justify your answer in the light of environmental issues caused.
what is the meaning of solution
Explain enzymes catalysed reactions and non enzyme catalysed reaction
A house is air conditioned using solar energy. Solar radiation heats a pressurized tank such that the temperature is maintained at 175 o C. 1500 kJ must be extracted from the hou
Step growth or condensation polymerisation In this form of polymerisation monomers usually consist of two functional sets, that is difunctional monomers. In that method no init
Why magnesium does not impart any colour to Bunsen flame while calcium does
what is amine
how long does time take to wash away the colour
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