WorksheetsRedox Reactions Lec 1
Total questions: 10
Worksheet time: 12mins
Oxidation involves
Loss of electrons
Gain of electrons
Removal of Hydrogen
Increase in oxidation numbers
When Sn2+ changes to Sn4+ in a reaction, it
Loses 2 electrons
Gains 2 electrons
Loses 2 protons
Shows no change in protons
Which of the following cannot act as oxidizing agent?
O2
KMnO4
I2
K2Cr2O7
The reaction H2SO4 + 2NaOH ----> Na2SO4 + 2H2O
is a redox reaction
is not a redox reaction
Oxidation state of chlorine increases from -1 to 0. Hence HCl is ____________ agent?
Redox
Oxidizing
Reducing
Complex
A metal ion M3+ loses 3 electrons. Its oxidation number will be?
+3
+6
+7
+3
The oxidation number of Fe in [Fe(CN)6]-3 ion is
+2
+3
-2
-3
In which of the following, the oxidation number of chlorine is +5?
Cl-
ClO-
ClO2-
ClO3-
In which of the following compounds, an element exhibits two different oxidation states?
NH2OH
NH4NO3
N2H4
N3H
The oxidation number on the central carbon atom in O=C=C=C=O and the average oxidation number of carbon, respectively are
0 , +1.33
+4 , -1.33
+2 , 0
0 , +2
