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Filter pump
Some skill is needed to construct the ordinary glass filter pump, but it is possible to contrive one from glass tubing and good corks. The action of the pump depends on the principle that a jet of water directed down a narrow tube carries air with it and decreases the pressure of the air in the vicinity (Y).
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Q. Illustrate Ionic Bonds or electrovalent bond? Ans. An ionic bond (also called an electrovalent bond) is the attraction between oppositely charged ions. Elements from o
DISCUSS THE THEORY OF SOFT AND HARD ACID AND BASE
potential sources of error associated with coulometric titrations
100 ch3-ch2-choh-ch2-ch2cl
Q. What are the De Broglies waves? Bohr anticipated that hydrogen's single electron could orbit at only specific distances from the atom's nucleus. When the electron is in the
Correct configuration of Fe +3 [26] is: (1) 1s 2 , 2s 2 , 2p 6, 3s 2, 3p 6 , 3d5 (2) 1s 2 , 2s 2, sp 6 , 3s 2 , 3p 6 , 3d 3 , 4s 2 (3) 1s 2 , 2s 2 , 2p
A metal surface is exposed to solar radiations: (1) The emitted electrons have energy less than a maximum value of energy depending upon frequency of incident radiations
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The atomic number of an element is 17. The number of orbitals containing electron pairs in its valence shell is: (1) Eight (2) Six (3) Three
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