Question

In the following decomposition reaction ${2H_2O ->[\Delta] 2 H_2 + O_2}$

• A. hydrogen is oxidised
• B. oxygen is reduced
• C. hydrogen is reduced
• D. oxygen remains unaffected

Answer 1

Answer: (C)

hydrogen is reduced

Answer 2

{ 2\overset{\text{+1 }}{ { H_2}}$$\overset{\text{ -2}}{ { O}}$->[\Delta] 2$\overset{\text{ 0}}{ {H_2 }}$+$\overset{\text{0 }}{ { O}} _2 } ; here hydrogen is reduced