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A transition metal X has a configuration [Ar] 3d4 in its +3 oxidation state. Its atomic number is:
(1) 25
(2) 26
(3) 22
(4) 19
Ans: 25
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From the following which group of elements easily forms cation: (1) F, CL, Br (2) Li, Na, K (3) O, S, Se, (4)
Give reasons for the following: a. Molten aluminium bromide is poor conductor of electricity. b. Nitric oxide becomes brown when released in air. c. PCl
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Chemical in cosmetics The phrase cosmetics are taken from the Greek word Kosmetikos. The meaning of this is decorating. Beautifying or enhancing complexion of skin. In middle a
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