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When an electron revolves in a stationary orbit then:
(1) It absorbs energy
(2) It emits radiation
(3) Its energy remains constant
(4 )It gains kinetic energy
Ans: Its energy remains constant
All the elements of Group 13 form trioxides also known as sesquioxides of the formula, M 2 O 3 . Thallium forms stable Tl 2 0 also. The basic character of oxides increases down th
Volumetric method for acids and bases - chemical methods Molecular mass of an acid can be ascertained by dissolving a known mass of the acid in water and titrating the solution
assignment of plazma
discovery of neutron becomes very late because
The shape of d xy orbital will be: (1) Circular (2) Dumb-bell (3)Double dumb-bell (4) Trigonal Ans: Double dumb-bell
Antidepressants: These drugs are specified to patients along with shattered confidence. These provide a feeling of well being and confidence in the person of depressed mood. H
An air oven A large tin can is used as an air oven. A hole through the lid fitted with a cork holds a thermo- meter, and the saucer or dish rests on a wire gauze bridge placed
What is heat atomisatin? Solution : Heat of atomisation or enthalpy of atomisation is the energy required to dissociate one mole of a given substance into atoms.
total metal in word
Calculate the pH of 0.100 L of a buffer solution that is 0.22M in HF and 0.53M in NaF
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