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Saturday, December 10, 2016

Chemistry

1.The nucleus of an atom consists of
electrons and neutrons electrons and protons protons and neutrons All of the above

2.The number of moles of solute present in 1 kg of a solvent is called its
molality molarity normality formality

3.The most electronegative element among the following is
sodium bromine fluorine oxygen

4.The metal used to recover copper from a solution of copper sulphate is
Na Ag Hg Fe

5.The metallurgical process in which a metal is obtained in a fused state is called
smelting roasting calcinations froth floatation

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