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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.
There are three assignments due on the 25th I can''t give the questions because it is online
what are the chemical properties of lactic acid?
How acidic character varies in s block elements
The value of Planck's constant is 6.63x 10 -34 Js. The velocity of light is 3.0x 10 8 ms -1 . Which value is closest to the wavelength in nanometres of a quantum of light with
The electronic configuration 1s 2 , 2s 2 , 2p 1 x , 2p 1 z : (1) Oxygen (2) Nitrogen (3) Hydrogen (4) Fluorine Ans: Nitrogen
Write a reaction for which the enthalpy change will be (delta H) for solid aluminum oxide.
Sulpha drugs: These are synthetic chemotherapeutic agents who consist of sulphonamide, -SO 2 NH 2 set in their organization. These were the firstly effective chemotherapeutic
One mole of gas A decomposed exothermically into one mole of gas B and one mole of gas C with Kp = 1.8 x 10-5 at 300 K. If the initial pressure of each gas was 0.150 atm, what were
what is made when resorsinol reacts with zinc powder?
A covalent bond is likely to be formed between two elements which: (1) Have similar electronegativities (2) Have low ionization energies (3) Have low melting points (4
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