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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.
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
Acid dyes: These are commonly salts of sulphonic acids and can be helpful to silk, wool and nylon. The presence of sulphonic acid group creates them water soluble. These dyes a
Question 1: (i) What are the main physical properties of hydrogen sulphide? (ii) Which occupational group of workers is often exposed to hydrogen sulphide? (iii) O
Q. Describe the foaming properties? Foods like meringue, ice cream and beer contain foams. A number of foods possess good foaming properties on account of the proteins they con
conclusion of the topic?
Indigo test
how to calculate equivalent weight of phenol
examples of antifertility drugs
covalent bond
Bohr model of an atom could not account for : (1) Emission spectrum (2) Absorption spectrum (3) Line spectrum of hydrogen (4)Fine spectrum Ans: Fine spectrum
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