JEE Main 2014 (Offline) | Redox Reactions Question 56 | Chemistry

JEE Main 2014 (Offline)

MCQ (Single Correct Answer)

-1

In which of the following reactions H₂O₂ acts as a reducing agent?
1. H₂O₂ + 2H⁺ + 2e^- $$\to$$ 2H₂O
2. H₂O₂ - 2e^- $$\to$$ O₂ + 2H⁺
3. H₂O₂ + 2e^- $$\to$$ 2OH^-
4. H₂O₂ + 2OH^- - 2e^- $$\to$$ O₂ + 2H₂O

1, 2

3, 4

1, 3

2, 4

JEE Main 2013 (Offline)

MCQ (Single Correct Answer)

-1

Consider the following reaction:

$$xMnO_4^- + yC_2O_4^{2-}$$ + zH⁺ $$\to$$ xMn²⁺ + 2yCO₂ + $${z \over 2}{H_2}O$$

The value's of x, y and z in the reaction are, respectively :

5, 2 and 16

2, 5 and 8

2, 5 and 16

5, 2 and 8

AIEEE 2006

MCQ (Single Correct Answer)

-1

Which of the following chemical reactions depicts the oxidizing behaviour of H₂SO₄?

NaCl + H₂SO₄ $$\to$$ NaHSO₄ + HCl

2PCl₅ + H₂SO₄ $$\to$$ 2POCl₃ + 2HCl + SO₂Cl₂

2HI + H₂SO₄ $$\to$$ I₂ + SO₂ + 2H₂O

Ca(OH)₂ + H₂SO₄ $$\to$$ CaSO₄ + 2H₂O

AIEEE 2002

MCQ (Single Correct Answer)

-1

Which of the following is a redox reaction ?

NaCl + KNO₃ $$\to$$ NaNO₃ + KCl

CaC₂O₄ + 2HCl $$\to$$ CaCl₂ + H₂C₂O₄

Mg(OH)₂ + 2NH₄Cl $$\to$$ MgCl₂ + 2NH₄OH

Zn + 2AgCN $$\to$$ 2Ag+ Zn(CN)₂

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