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If the velocity of hydrogen molecule is 5x 10 4 cm sec -1 then its de-Broglie wavelength is: (1) 2 Å (2) 4 Å (3) 8 Å (4)100 Å Ans: 4 Å
Effect of impurities on resistivity: A small percentage of impurities can result in substantial increase in resistivity i.e. decrease in the conductivity. Mathem
what is the name for the following compound,CH3-C=C-CH-CH=CH2
defining titration,Redox Titrations
Environmental pollution caused by oxides and oxyacids f nitrogen and sulphur
Which of the following is always a whole number : (1) Atomic weight (2) Atomic radii (3) Equivalent weight (4) Atomic number Ans: Atomic number
what is resonence effect on acidity
How much time a hydrogen electron will take when it goes from first orbit to second orbit?
Physical properties of Ethers - Boiling points and Solubility (a) Boiling points: Boiling points of ethers are very much lower as compared to those of isomeric alcohols, althou
list the physical properties of two examples of metallic and non metallic elements
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