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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 shape of s -orbital is: (1) Pyramidal (2) Spherical (3)Tetrahedral (4)Dumb-bell shaped Ans: Spherical
complete reaction
Illustrate the term Rolling with diagram A pair of cylindrical rollers made of iron or steel rotate in opposite direction with a gap between them which is smaller than cros
Viscosity: Viscosity characterizes the motion of fluids in the presence of a mechanical shear force. All fluids can flow, and the resistance they pose to such flow is called VI
why is lead in both group I and II
Preparation and uses of western
types of electrochemical cells any 5
Westron_>zn+alcohol->?
sources of errors in thermogravimetry
I put an unknown solid acid into a base solution. How do I find the equivalents of base consumed?
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