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Which electronic level would allow the hydrogen atom to absorb a photon but not to emit a photon Ans) We know the energy of electron goes on to become more negative as it reache
what are the different types of colloidal system?
A hydrocarbon z with molecular mass 78 on combustion gave 3.384g of carbon (IV) oxide and 0.693g of water. Determine the molecular formula of Z and draw its structure. [H=1, C=12,
Q. Explain the structure of Alkenes? Ans. Alkenes have the general formula C n H 2n . Therefore, for every n carbon atoms, there are 2n hydrogen atoms. Alkenes have C =
Bond energy of covalent O-H bond in water is: (1) Greater than bond energy of H bond (2) Equal to bond energy of H bond (3) Less than bond energy of H bond (4) None o
why He and H cannot liqueified by linde''s method
What is the nature of urea? Is it acidic basic or neautral how can wr verify it?
Q. Effect of various additives on the stability of egg foam? recognize the different stages in the foam formation, explain the effect of various factors in foam format
photochemical combination of hydrogen molecule and iodine molecule
Uses of Formic acid - Carboxylic acids (a) Formic acid is used in the laboratory for preparation of carbon monoxide. (b) Formic acid is used in the preservation of fruits.
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