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Define the following observations:
(i) Most of the known noble gas compounds are those of xenon.
(ii) CIF3 exists but FCI 3 does not.
(iii) Between the hydrides of elements of Group 16, water shows unusual physical properties.
(iv) Unlike phosphorus, nitrogen shows little tendency for catenation.
(v) Sulphur in vapour state exhibits paramagnetic behaviour.
describe and explain the charater tables of water and amoniaa molecule
Why inductive effect is compared with hydrogen?
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Q. Illustrate phase diagram? Ans. There are two things which influence phase change: 1. The pressure exerted on the surface of a substance. 2. The addition or rele
The frequency corresponding to transition n= 2 to n =1 in hydrogen atom is: (1) 15.66 x 10 10 Hz (2) 24.66 x 10 14 Hz (3) 30.5
the atomic number of element represents
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The quantity of heat liberated of absorbed when one mole of compound is formed in its standard state from its elements in their standard state is known as standard heat of formatio
Ammonia is a gas for which reliable analytical methods are available to determine concentration in other gases. To measure flow in a 15 inch schedule 40 natural gas pipeline, pure
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