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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.
Write the formula and name the example of k peroxide
fajan''s law
HOW TO CALCULATE TITRE FACTOR.
what is the lewis structure of lactic acid?
What is Allotropy If the change in structure is reversible then the polymorphism is called as 'allotropy'.Allotropy (Gr. allos, other, and tropos, manner) is a behavior exhibi
Draw a two-dimensional model of a closed-packed assembly of spheres. Change this model into a three-dimensional one. How many dissimilar possibilities are there of stacking a)
Anomalous behaviour of boron
The electron density between 1s and 2s orbital is : (1) High (2) Low (3) Zero (4)None of these Ans:Zero
The four quantum numbers of the valence electron of potassium are : (1) 4, 1, 0 and 1/2 (2) 4, 0, 1 and 1/2 (3) 4, 0, 0 and +1/2 (4) 4, 1, 1 and 1/
Energy difference is maximum between which of the consecutive energy levels in an atom? Ans) According to the line spectrum of hydrogen maximum energy is there between FIRST AND
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