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In the compound K2C1O4 , what is the correct oxidation number of each of its elements? (K is a Group I element) (The rules for assigning Oxidation States are given as below) 1) The oxidation numbers of the atoms in a neutral molecule must add up to zero. 2) Group I → +1 ; Group II → +2 ; Group I → +3 3) Fluorine → -1 (always) Halogens - -1 (except in compounds with O and other halogens) 4) Hydrogen → +1 (except in metal hydrides, e.g. LiH, Rule 2 and H has -1) 5) Oxygen -2 (except in compounds with F, Rule 3) and compounds with 0-0 bonds (Rules 2 & 4) OA K:+2 , Cr:+2 ,O: -2 O B. K:+1 , Cr:+4 ,O: -2 ocK:+1 , Cr:+2 ,O: -2 O D.K:+2, Cr:+6 ,O: -2 K:+1 , Cr:+6 ,O: -2 O E.

In the compound K2C1O4 , what is the correct oxidation number of each of its elements? (K is a Group I element) (The rules for assigning Oxidation States are given as below) 1) The oxidation numbers of the atoms in a neutral molecule must add up to zero. 2) Group I → +1 ; Group II → +2 ; Group I → +3 3) Fluorine → -1 (always) Halogens - -1 (except in compounds with O and other halogens) 4) Hydrogen → +1 (except in metal hydrides, e.g. LiH, Rule 2 and H has -1) 5) Oxygen -2 (except in compounds with F, Rule 3) and compounds with 0-0 bonds (Rules 2 & 4) OA K:+2 , Cr:+2 ,O: -2 O B. K:+1 , Cr:+4 ,O: -2 ocK:+1 , Cr:+2 ,O: -2 O D.K:+2, Cr:+6 ,O: -2 K:+1 , Cr:+6 ,O: -2 O E.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter18: Electrochemistry
Section: Chapter Questions
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In the compound K2CrO4 , what is the correct oxidation number of each of its elements? (K is a Group I element) (The rules for assigning Oxidation States are given as below) 1) The oxidation numbers of the atoms in a neutral molecule must add up to zero. 2) Group I- +1; Group II – +2; Group III → +3 3) Fluorine - -1 (always) Halogens – -1 (except in compounds with O and other halogens) 4) Hydrogen- +1 (except in metal hydrides, e.g. LiH, Rule 2 and H has -1) 5) Oxygen – -2 (except in compounds with F, Rule 3) and compounds with O-0 bonds (Rules 2 & 4) OA K:+2 , Cr:+2 ,0: -2 OB. K:+1 , Cr:+4 ,0: -2 ocK:+1 , Cr:+2 ,O: -2 OD.K:+2 , Cr:+6 ,0: -2 O E. K:+1 , Cr:+6 ,0: -2
Transcribed Image Text:In the compound K2CrO4 , what is the correct oxidation number of each of its elements? (K is a Group I element) (The rules for assigning Oxidation States are given as below) 1) The oxidation numbers of the atoms in a neutral molecule must add up to zero. 2) Group I- +1; Group II – +2; Group III → +3 3) Fluorine - -1 (always) Halogens – -1 (except in compounds with O and other halogens) 4) Hydrogen- +1 (except in metal hydrides, e.g. LiH, Rule 2 and H has -1) 5) Oxygen – -2 (except in compounds with F, Rule 3) and compounds with O-0 bonds (Rules 2 & 4) OA K:+2 , Cr:+2 ,0: -2 OB. K:+1 , Cr:+4 ,0: -2 ocK:+1 , Cr:+2 ,O: -2 OD.K:+2 , Cr:+6 ,0: -2 O E. K:+1 , Cr:+6 ,0: -2
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