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Physical methods for Non-volatile substances
The non-volatile organic compound's molecular mass can be ascertained by noting either the elevation in boiling point of the solvent like Ebullioscopic method or the depression in freezing point of the solvent like Cryoscopic method generated by dissolving a fixed mass of the substance in a known mass of the solvent.
preparation reaction of esters
If electron falls from n=3 to n= 2 , then emitted energy is: (1) 10.2ev (2) 12.09 ev (3) 1.9ev (4)0
Thermodynamics Thermodynamics is a macroscopic science and its most fundamental level is the study of two physical energy, entropy and quantities. Energy may be regarded as the
An element have atomic weight 40 and it's electronic configuration is 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 . Then its atomic number and number of neutrons will be: (1) 18 and 22
Q. What is SI unit of energy? Ans. The SI unit of energy is called the joule. A joule is a pretty small mount of energy so often chemists will use the unit kJ =1 kilojoule
Explain and classify vitamins. Name the diseases caused because of lack of any three of them.
Drugs or Medicines from plants 1. Bark of willow tree that consists of salicylic acid. It is employed to take relief from fever and pain. 2. Alkaloid Reserpine that is taken
mechanism for the enzyme-catalyzed
scientist''s explain about atomic
Which of the following orbital is not possible: (1) 3 f (2) 4 f (3)5 f (4) 6 f Ans: 3 f
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