Diamonds are glittering and attractive because light Incident on them undergoes
1). highest refraction
2). multiple internal reflections
3). multiple surface reflections
4). hundred percent transmission
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1. Commercially sodium bicarbonate is known as
2. Which metal is extracted from sea water?
3. This group of alumino silicate minerals is widely used In making electrical insulators
4. Identify the metal which is nontoxic in nature
5. Urea is a
6. The property of hydrogen which distinguishes it from alkali metals is
7. Molasses a byproduct in the manufacture of sugar is converted into
8. Major portion of the earth's crust is mainly constituted by
9. Question 11.33:An aqueous solution of borax is(a) neutral (b) amphoteric(c) basic (d) acidic