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Effects of substituents on the acidity of phenols: Existence of electron attracting group, (for example -NO 2 , -X, - NR + 3 , -CN, -CHO, -COOH) on the benzene ring increases
The de-Broglie wavelength of a particle with mass 1gm and velocity 100m/ sec is: (1) 6.63 x 10 -53 m (2) 6.63 x 10 -34 m (3
Method of preparation of Benzophenone
Q. Magnetic Properties of f-block element? You have learnt in the preceding unit-that paramagnetism is related with the presence of unpaired electrons in a substance. The actin
describe the comparative study of physical and chemical properties of p block elements.
What is the molar mass of solute in the solution of any mass? Ans) Molar Mass is defined and set as a absolute mass for every solute, solvent or sol. et.c It is a particular
chain shortening in aldoses
Determination of Molecular Mass - Victor Meyer method Molecular mass of volatile liquids and solids that can be easily ascertained from the application of Avogadro hypothesis a
How many unpaired electrons are present in cobalt [Co] metal: (1) 2 (2) 3 (3) 4 (4) 7 Ans: 3
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