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Cellulose - Biomolecules
Cellulose is found in all plants and thus is the most abundant of all carbohydrates. It is the substance required to form cell walls and another structural features of the plants. Wood is approximately 50% cellulose and the rest is lignin. Paper and Cotton are basically composed of cellulose.
Pure cellulose is acquired by consecutively reacting flax, cotton or paper, wool with dilute alkali, dilute HCL or HF. This reaction alters mineral matter, water and ether. Cellulose is left behind like a white amorphous powder.
Q. What do you mean by Dative Covalent Bonds?Dative Covalent Bonds Ans. Sometimes both electrons in the shared pair come from one atom. This type of bond is called a dativ
what are the diferent types of indicators and describe them
The amount of heat liberated when single mole of any substance is completely burnt in oxygen is known as heat of combustion H is negative for heat of combustion.
Q. Show the properties of Lithium Aluminium Hydride? Lithium aluminium hydride is much more useful than aluminium hydride. It is prepared in the laboratory by the action of LiH
chain shortening in aldoses
write a short note on colour and constitution
Hedonic Rating In this test the assessor is asked to record the extent of liking for a product, usually by selecting a category on a "hedonic" or liking scale that runs from
Vat dyes: These dyes are insoluble in water and cannot be helpful directly. These dyes on decline along with sodium hydrosulphite (NaHSO 3 ) in a vat make a soluble compound th
description about an electron''s movement
DISCOVERY OF SUB-ATOMIC PARTICLES The atomic theory of the Greek philosophers, Leucippus and Democretus (400 B.C.) held that continued subdivision of matter would ultimately yi
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