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Uses of plaster of paris
The valency of sulphur in sulphuric acid is: (1) 2 (2) 4 (3) 6 (4) 8 Ans: 6
Longest chain Rule - IUPAC system of nomenclature The primary step in naming an organic compound is to choose the longest continuous chain of carbon atoms that may or may not
laws of chemical combination
An electronic transition from 1s orbital of an atom causes: (1) Absorption of energy (2) Release of energy (3) Both release or absorption of energy (4) Unpredictable
x gram of metal reacts with chlorine to form y gram of metal chloride.calculate equivalent mass of metal.
When NaCl is dissolved in water, the sodium ion become
laws of chemical combinations
construction of dry cell
Which of the following pairs of species has same electronic configuration: (1) Zn 2 and Ni 2+ (2) Co +3 and Ni 4 (3) Co 2+ and Ni
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