Check the below NCERT MCQ Questions for Class 11 Chemistry Chapter 8 Redox Reactions with Answers Pdf free download. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. We have provided Redox Reactions Class 11 Chemistry MCQs Questions with Answers to help students understand the concept very well.
Q.1 The number of moles of KMnO4 reduced by one mole of KI in alkaline medium is
(a) One
(b) Two
(c) Five
(d) One fifth
(b) Two
Q.2 The reduction potential values of M, N and O are +2.46 V, -1.13 V, -3.13 V respectively. Which of the following orders is correct regarding their reducing property?
(a) O > N > M
(b) M > O > N
(c) M > N > O
(d) O > M > N
(d) O > M > N
Q.3 Which of the following processes does not involve either oxidation or reduction?
(a) Formation of slaked lime from quick lime
(b) Heating Mercuric Oxide
(c) Formation of Manganese Chloride from Manganese oxide
(d) Formation of Zinc from Zinc blende
(a) Formation of slaked lime from quick lime
Q.4 Pure water is bad conductor of electricity because
(a) It has high boiling point
(b) It is almost unionised
(c) Its molecules are associated with H- bonds
(d) Its pH is 7 at 25°C
(b) It is almost unionised
Q.5 The oxidation process involves
(a) Increase in oxidation number
(b) Decrease in oxidation number
(c) No change in oxidation number
(d) none of the above
(a) Increase in oxidation number
Q.6 A standard hydrogen electrode has zero electrode potential because
(a) Hydrogen is easiest to oxidise
(b) This electrode potential is assumed to be zero
(c) Hydrogen atom has only one electron
(d) Hydrogen is the lightest element
(b) This electrode potential is assumed to be zero
Q.7 Burning of lime to give calcium oxide and carbon dioxide is
(a) An Oxidation Process
(b) A Reduction Process
(c) Disproportionation
(d) Decomposition
(d) Decomposition
Q.8 The relationship between electrode potentials and concentrations of the substances involved in half cell reaction is given by
(a) Habers process
(b) Hess Law
(c) Nernst Equation
(d) None of the Above
(c) Nernst Equation
Q.9 The tendency of an electrode to lose electrons is known as
(a) Electrode Potential
(b) Reduction Potential
(c) Oxidation Potential
(d) E.M.F.
(c) Oxidation Potential
Q.10 What is n-factor?
(a) Equal to product of Number of moles of electrons when Lost or gained by one mole of reductant or oxidant
(b) When Number of moles of electrons Lost or gained by one mole of reductant or oxidant is not same.
(c) Equal to Number of moles of electrons Lost or gained by one mole of reductant or oxidant
(d) None of the above
(c) Equal to Number of moles of electrons Lost or gained by one mole of reductant or oxidant
Q.11 Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?
(a) Copper
(b) Magnesium
(c) Iron
(d) Silver
(b) Magnesium
Q.12 A chemical reaction involving _______________ is known as oxidation.
Loss of electrons
Q.13 The algebraic sum of the oxidation number of all the atoms in a compound must be _____________.
Zero
Q.14 In all its compounds, fluorine has an oxidation number of ______________.
-1
Q.15 The standard electrode potential (E°) of hydrogen electrode is ______________volts.
0.00
Q.16 The oxidation state of hydrogen in metal hydride is______________.
-1
Q.17 The oxidation number of oxygen in a water molecules is ___________.
-2
Q.18 Oxidation involves a loss of electrons.
True
Q.19 Oxidising agents looses electrons.
False
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