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Physics
Multiple Choice Question with Two or More Choices Correct The chemical behaviour of an atom depends upon (a) the number of electrons orbiting around its nucleus (b) the number of protons in its nucleus (c) the number of neutrons in its nucleus (d) the number of nucleous in its nucleus
Chemistry
Fill in the Blank : The principal ore of iron from which it is extracted is ............ .
Mathematics
The sides of a triangle are three consecutive natural numbers and its largest angle is twice the smallest one. Determine the sides of the triangle.