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An element L has 9 protons and valency 1. Another element M has valency 3 and 5. What is the difference in the number of electrons in L and M ?
the law of multiple proportion
Uses of Benzene - Hydrocarbon (1) In dry cleaning (2) As a motor fuel when mixed with petrol. (3) As a solvent. (4) In the manufacture of gammexane (As insecticide).
explain vsepr thheory
AS THIS ALKALI METALS HAS LARGE SIZE AND LESS IONISATION ENERGY THEY LOSE THEIR OUTERMOST ELECTRON EASILY. PHOTOELECTRIC EFFECT MEANS EJECTION OF ELECTRONS FROM A METAL WHEN THEY
classes of azo dyes\
Gold has a molar mass of 197g/mol. How many atoms are in the sample?Please give me procedure also. Ans) molecular wieght of gold is 197 g 1mole/g of molecule is occupies t
Inductive effect - Relative reactivity of aldehydes and ketones The comparative re-activities of aldehydes and ketones in nucleophilic addition reactions might be attributed to
Briefly discuss the physical origin and uses of Hall effect? Its physical origin follows from the Boltzmann Transport phenomenon. It is used to get carrier density and the sign
The frequency of a wave of light is 12x 10 14 s -1 . The wave number associated with this light is: (1) 5x10 -7 m (2) 4x 10 -8 cm -1
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