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1) chlorides formed by  chromium( can be more than one answer) a) Cr3Cl b) CrCl3 c) CrCl 2 d) CrCl4   2) oxides formed by  chromium a) Cr3O2 b) Cr2O3 c) Cr3O d) Cr O 3) chlorides formed by  lead a) PbCl 4 b) PbCl5 c) Pb3Cl d) Pb Cl 2   4) oxides formed by  lead   a) Pb O b) Pb2O3 c) Pb O 2 d) Pb3O2

1) chlorides formed by  chromium( can be more than one answer) a) Cr3Cl b) CrCl3 c) CrCl 2 d) CrCl4   2) oxides formed by  chromium a) Cr3O2 b) Cr2O3 c) Cr3O d) Cr O 3) chlorides formed by  lead a) PbCl 4 b) PbCl5 c) Pb3Cl d) Pb Cl 2   4) oxides formed by  lead   a) Pb O b) Pb2O3 c) Pb O 2 d) Pb3O2

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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1) chlorides formed by  chromium( can be more than one answer)

a) Cr3Cl
b) CrCl3
c) CrCl 2
d) CrCl4
 

2) oxides formed by  chromium

a) Cr3O2
b) Cr2O3
c) Cr3O
d) Cr O

3) chlorides formed by  lead

a) PbCl 4
b) PbCl5
c) Pb3Cl
d) Pb Cl 2
 
4) oxides formed by  lead
 
a) Pb O
b) Pb2O3
c) Pb O 2
d) Pb3O2
 
Thanks so much!
 
Expert Solution
Step 1

1.  Cr atomic no. is 24 and configuration of valence shell is 3d5 4s1. It exists in +2,+3,+4. 

so chlorides of Cr are CrCl2, CrCl3, CrCl4 (unstable).

other options are not correct because Cr3Cl doesn't exit.

2.  Oxides of Chromium

Cr2O3, CrO, 

All other oxidation state does not exit.

3. Pb with chlorine only show +2 oxidation state due to inert pair effect.

Hence PbCl2

 

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