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The oxidation number of `Mn` in the product of alkaline oxidative fusion of `MnO_2` is
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As shown in the diagram, there are two blocks of the same mass M, one on top of the other, lying on
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Two plane mirrors `A` and `B` are aligned parallel to each other, as shown in the figure. A light ra
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If `x= sqrt(1+sqrt(1+sqrt(1+.....text( to infinity))))`, then x =
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Find the value of `(sin 12°) (sin 48°) (sin 54°)`.
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The negation of `\~ s \vee (\~ r\wedge s)` is equivalent to
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