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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.
Using the valence bond approach, reduce the shape and magnetic character of What are elastomers? Write the chemical equation to show the preparation ration of Buna-S.
what is an atom
Nitration or Direct method The number of - NO 2 groups introduced in benzene nucleus relies upon the nature and concentration of the nitrating agent, temperature of nitration
explain curie progogine principle
give one book name about electromatric effect?&author name?
what is ionisation energy
Ask questionfreezing point as exemple of colligative propertiy. #Minimum 100 words accepted#
a sample of CaCo3 and MgCo3 weighing 192g is ignited to constanr weight of 104 gm . what is the composition of mixture ?
Explain bond dipole for dimethylmagnesium The bond dipole for dimethylmagnesium should show that C is at the negative end of the C-Mg bond, because carbon is more electronegati
Q. What are the De Broglies waves? Bohr anticipated that hydrogen's single electron could orbit at only specific distances from the atom's nucleus. When the electron is in the
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