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7. The parts of motor cars are polished by chromium because the angle of contact between water and chromium is

HomePosts tagged “7. The parts of motor cars are polished by chromium because the angle of contact between water and chromium is”
(a)      0o      (b)   90o (c)   Less than 90o                               (d)  Greater than 90o Ans. d (5)
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