Chemistryhard · Past Paper
Which of the following is a redox reaction?
ANaOH + HCl -> NaCl + H2O
BAgNO3 + NaCl -> AgCl + NaNO3
CH2 + Cl2 -> 2HCl
DBaCl2 + H2SO4 -> BaSO4 + 2HCl
✓ Correct Answer: C — H2 + Cl2 -> 2HCl
Oxidation states of H and Cl change from 0 to +1 and -1 respectively.
Share this question
More from Chemistry
- When an acid reacts with a base to form salt and water, the reaction is known as:
- In the reaction $PCl_5 \rightleftharpoons PCl_3 + Cl_2$, how will the equilibrium shift if the pressure is increased?
- Calculate the pH of a 0.01 M NaOH solution.
- In the reaction $H_2S + I_2 \rightarrow 2HI + S$, identify the substance that is reduced.
- What is the pH of a 1.0 M HCl solution?