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Important physico-chemical properties of biotin include the following:
a) It forms colourless, needle shaped crystals.
b) The vitamin is sparingly soluble in cold water but highly soluble in hot water. The compound is sparingly soluble in alcohol.
c) Biotin forms salts with alkali hydroxides such as NaOH.
d) The compound is photostable.
e) Biotin is destroyed in acid solution.
Enumerate the ratio of rainfall to temperature The effect of climatic agents on the changes taking place in the parent material is determined by the ratio of rainfall to temper
Saponification :- Fats when boiled with alcoholic solution of NaOH or KOH undergo hydrolysis into glycerol and fatty acids and the latter form soaps with Na or K. The
Using what you know about the energy—matter relationship, explain why the ecosystems with the greater amount of overall energy tend to have a greater number of organisms.
A simple equal-arm lever Make a wooden base 15 cm square and 2 cm thick. In the centre of the base fasten one more block of wood 4 cm square and 3 cm thick. Fasten to two sides
Functional unit of the nervous system-neuron: The human brain is composed of more than one hundred billion (100,000,000,000 or 1011) cells called 'neurons'. This number which
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Will we ever go beyond The Milky Way to explore other galaxies?
Decribe the factors which decide the broad area of scientific activity
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First Hominids The First Human Fossil The earliest human like or hominid remains come from two separate East African sites. Ethiopia has yielded several hundred fossil fragment
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