Reduction involves ……………
(A) gain of electrons
(B) addition of oxygen
(C) increase in oxidation number
(D) loss of electron
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a) s – sub shell i) Maximum number of electrons is 6, b) p – sub shell ii) Maximum number of electrons is 14
C) a→iii, b→i, c→iv, d→ii
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The tendency of an atom to gain electrons is ……………..
A) Non-metallic character
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Match the following: Sharing one pair of electrons — i) Double bond , Sharing two pairs of electrons — ii) Single bond
C) a →ii, b →i, c → iii
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David : By transfer of electrons atoms – can attain octet Dravid : By sharing of electrons atoms – can attain octet
C) Both David and Dravid are correct.
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The number of electrons present in outer most orbit of an atom is called ……………… electrons.
Correct option is A) valency
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An oxidation reaction involves addition of ……………………
C) oxygen or removal of hydrogen
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Which is true about oxidation ? A) It involves loss of electrons.
D) All are true.
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Reduction involves …………… (A) gain of electrons (B) addition of oxygen
Correct Option is: (A) gain of electrons Reduction involves gain of electrons , removal of oxygen , addition of Hydrogen , and decrease in oxidation number.
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What do we call those particles which are formed : (a) by the gain of electrons by atoms ? (b) by the loss of electrons by atoms ?
Correct Answer - (a) Anions , (b) Cations
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Double salts are addition compounds which lose their identify in aqueous solution whereas complexes which are also addition compounds do not lose thei
Correct Answer - D It is homogeneous catalyst for hydrogenation of alkenes.
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