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Which of the following gases is obtained by the reaction of copper with dilute nitric acid is 1 NO2 2 N2O5 3 O2 4 NO
List and explain two instances of Correlation Science with Life Situation
how longs & what conditions will a matter, say for example U, after an atomic explosion and was converted completely into energy will again condensed back into a matter named U'
Why is it necessary to cook food ?
Which synthetic fiber is known as artificial silk? 1 Cotton 2 Rayon 3 Terylene 4 Nylon
What are vitamins ? describe different kinds of vitamins
Which of the following characteristics is not-shown by hydrogen? 1 It burns in air to form water 2 It supports combustion 3 It combines with almost all the metals forming hydrides 4 None of these
Which of the following metals is a better conductor of electricity? A. Silver B. Copper
What is the Embrylogy ?
What are the divisions of food according to the functions it performs ? Describe them
When was the atomic energy regulatory board ( aerb ) constituted?
Describe the evolution of science and its impact on society