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which element have highest oxidation number and why?
Q. Illustrate Aromatics compounds? Ans. Benzene (C 6 H 6 ) is the prototype of an important class of hydrocarbons called aromatic compounds. Benzene is a ring of 6 carbon
Question : (a) (i) What do you understand by the term "Public Health"? (ii) What are the three core functions of public health? (iii) How does a public health system
Q. Describe about groups or families in periodic table? Every element may be represented by a one or two letter symbol. In the middle of nineteenth century a Russian chemist Dm
Because Nucleus is composed of protons and neutrons..
The correct order of increasing energy of atomic orbitals is: (1) 5p (2) 5p (3) 4f (4) 5p Ans: 5p
Q. Show the broader classification? A broader classification is based on the reaction of the oxide with water. According to this, oxides are classified as' acidic, basic, neutr
The electronic configuration of chromium is: (1) [Ne]3s 2 , 3p 6 , 3d 4 , 4s 2 , (2) [Ne]3s 2 , 3p 5 , 3d 4 , 4s 1 , (3) [Ne]3s 2 , 3p 6 , 4s 2 ,
Line Spectru- A emission spectrum that contains very sharp peaks (Prism Like Structure) , corresponding to transitions between states in free atoms.For example, the line spectrum o
Electron affinity : In a system of a neutral atom and an extra electron, when the additional electron is attracted from the infinity to the outer orbit of the neutral atom, the wo
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