Which of the following reaction involves oxidation and reduction?

Chemistry · JEE Main · NTA Exams — Redox Reactions and Electrochemistry

1. NaBr + HCl  → NaCl + HBr
2. HBr + AgNO₃ → AgBr + HNO₃
3. H₂ + Br₂ → 2HBr
4. Na₂O + H₂SO₄ → Na₂SO₄ + H₂O

Answer

(C) H 2 + Br 2 → 2HBr

Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.

Related practice questions

• The correct order of reduction potentials of the following pairs is A. Cl 2 /Cl – B. I 2 /I – C. Ag + /Ag D…
• The standard electromotive force of the cell Fe | Fe ^ 2+ ( aq ) | | Cd ^ 2+ ( aq ) | Cd If the temperature…
• When chlorine (Cl 2 ) water in excess is added to a salt solution containing chloroform, chloroform layer…
• The equivalent conductances of two strong electrolytes at infinite dilution in H 2 O (where ions move freely…
• How many moles of 1 5 ion will react with 1 mol of ferrous oxalate in acidic medium ?
• In the balance reaction As _ 2 O _ 3 + l _ 2 As _ 2 O _ 5 + I ^ - the stoichiometric coefficient of l - will…
• An electrolysis of a oxytungsten complex ion using 1.10 A for 40 min produces 0.838 g of tungsten. What is…
• E_ X^ - |A g X| A g ^ d will be maximum when AgX is:

More Redox Reactions and Electrochemistry questions · Browse all practice questions