Valance bond theory was proposed by ………………..
A) Lewis
B) Linus Pauling
C) Sidgwick and Powell
D) Kossel
1 Answers
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Select an appropriate chemical bond among ester bond, glycosidic bond, peptide bond and hydrogen bond and write against each of the following : (a) Po
Correct Answer - (a) Glycosidic bond (b) Peptide bond (c ) Ester bond (d) Hydrogen bond.
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The four quantum numbers for valance electron of Sodium atom are ………………
C) n = 3, l = 0, mI = 0, ms = +1/2
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Valance shell means ……………..
C) outermost shell
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The valance electrons in the atom of an element is depicted in short form by …………….. symbol or …………….. dot structure
B) Lewis, electron
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lonic bond was proposed by ……………..
Correct option is A) Kossel
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The drawbacks of electron theory of valance is/are ……………..
Correct option is D) All of these
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An element A forms a chloride ACl4 . The number of electrons in the valance shell of A.
Correct option is D) 4
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Valance shell electron pair repulsion theory was proposed by ……………..
A) Sidgwick and Powell
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The molecule with two bond pairs in two covalent bonds around the nucleus of the central atom without any lone pair in the valance shell is
Correct option is A) BeCl2
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i. Among single bonds, which bond is the strongest? ii. How is bond enthalpy related to bond strength?
i. Among single bonds, O-H bond is the strongest. ii. Larger the bond enthalpy, stronger is the bond.
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