What is the oxidation number of P in PO33-?   Question 1 options:   + 3 -3 +5

Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter19: Principles Of Chemical Reactivity: Electron Transfer Reactions
Section: Chapter Questions
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Question

 What is the oxidation number of P in PO33-?

 

Question 1 options:

 

  1. + 3



  1. -3



  1. +5



  1. -5

 

Question 2

What is the most accurate answer when we balance the following reaction using Half-Reaction for Basic solution?

 

MnO4-  + Sn(OH)42- ® Sn(OH)62-  + MnO2

 

Question 2 options:

 

a.

 

4H2O + 3MnO4- + 2Sn(OH)42- ® 2Sn(OH)62- + 3MnO2 + 2OH-



b.

 

2H2O + 4MnO4- + 3Sn(OH)42- ® 3Sn(OH)62- + 4MnO2 + 4OH-



c.

 

2H2O + 3MnO4- + 4Sn(OH)42- ® 4Sn(OH)62- + 3MnO2 + 4OH-



  1.  

4H2O + 2MnO4- + 3Sn(OH)42- ® 3Sn(OH)62- + 2MnO2 + 2OH-

 

Question 3 

    How does the oxidation number of Bi change when BiO3– reacts to form Bi(OH)3?

 

Question 3 options:

 

a.

 

decreases by 3



b.

 

decreases by 2



c.

 

increases by 4



d.

 

no change

 

Question 4 

 What is the oxidation number of vanadium in this compound?   

 

VO2ClO4

 

Question 4 options:

 

  1. -1



  1. +5



  1. +6



  1. +1

 

Question 5 

 For the following reaction if you write the complete reaction, which element is the Oxidation agent?

 

Solid magnesium and aqueous copper (II) sulfate

 

Question 5 options:

 

  1. Cu+2



  1. Mg0



  1. Mg+2



  1. Cu0

 

Question 6 

Use the Redox Equation. Which reactant is the oxidizing agent?

 

   

 

KMnO4 + HCl ® KCl + MnCl2 + Cl2 + H2O

 

Question 6 options:

 

a.

 

K+



b.

 

KMnO4



c.

 

HCl



d.

 

Cl-

 

Question 7 

If you balance the Redox Equation, what is the coefficient of H2O?

 

KMnO4 + HCl ® KCl + MnCl2 + Cl2 + H2O

 

Question 7 options:

 

  1. 2



  1. 3



  1. 8



  1. 6

 

Question 8 

Which element contains a full 3s orbital?

 

Question 8 options:

 

  1. B



  1. Mg



  1. Ne



  1. Na

 

Question 9 

           How many p orbitals are in each energy level, except n = 1?

 

Question 9 options:

 

  1. 1



  1. 3



  1. 5



  1. 6

 

Question 10 

  Which element has the ground state electron configuration [Ne] 3s23px13py1 for its valence electrons?

 

Question 10 options:

 

a, Mg



  1. Al



  1. Si



  1. P

 

Question 11

Which organic compound is unsaturated?

 

Question 11 options:

 

a.

 

ethylcyclopentane



b.

 

2-methyl-3-ethylpentyne



c.

 

1,1-dimethylhexane



d.

 

cyclohexane

 

Question 12 

To which family of organic compounds does CH3C(NH2 ) 2CH2CH2CH3 belong?

 

Question 12 options:

 

a.

 

alcohol



b.

 

aldehyde



c.

 

amide



d.

 

amine

 

Question 13

Which compound is formed by the oxidation of a secondary alcohol?

 

Question 13 options:

 

a.

 

tertiary alcohol



b.

 

aldehyde



c.

 

carboxylic acid



  1. ketone

 

Question 14

x “phenyl” refers to a(n)

 

       

 

Question 14 options:

 

a.

 

Alcohol



b.

 

Benzene ring



c.

 

Ether



d.

 

Ester

 

Question 15 

Find the correct name when we add water to Propene 

 

Question 15 options:

 

  1. propan-2-ol



  1. propanol



  1. propane-1,2-diol



  1. propen-2-ol

 

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