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The wave nature of an electron was first given by: (1) De-Broglie (2)Heisenberg (3)Mosley (4)Sommerfield Ans: De-Broglie
In naturally occuring neon, the fracional abundance of various isotopes is as follows: 20Ne =0.9051; 21Ne = 0.0027; 22Ne = 0.0922. What is the atomic mass of neon?
WHAT IS THE INITIAL CONCENTRATION
what is application of electrolysis ?
what is alternative form of cholesterol formed in plants and prokaryotes ?
Q. Show the Occurrence of Metals? Earth's crust and sea are the two main sources of metals. In the earth's crust metals occur both in the combined state in the form of minerals
chemical prooperties of aldehydes?
Which among the following species have the same number of electrons in its outermost as well as penultimate shell: (1) Mg 2+ (2) O 2-
The compound in which cation is isoelectronic with anion is : (1) NaCl (2) CsF (3) NaI (4) K 2 S Ans: K 2 S
(i) Assign appropriate reason for each of observations: (a) Anhydrous ALCI is used as a catalyst. (b) Phosphinic acid behaves as a monoprotic acid. (c) SF6 is not easily h
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