A 10 volume solution of H2O2 means_______?
Correct answer: D. 1mL of solution of H2O2 liberates 10 mL of O2 at STP
- A. 10 grams of H2O2 solution liberate 10 mL of O2 at STO
- B. 10 gram equivalents of H2O2 liberates 10 mL of O2 at STP
- C. 10 litres of H2O2 liberates 19 mL of O2 at STP
- D. 1mL of solution of H2O2 liberates 10 mL of O2 at STP
Explanation
A 10-volume H2O2 solution liberates 10 mL of oxygen gas at STP from every 1 mL of the solution. Thus the defining ratio is 1 mL solution : 10 mL O2 at STP, which matches d. Students may choose a because it repeats the number 10 but incorrectly uses 10 g instead of 1 mL.
Last updated
About Redox Reactions
Redox reactions involve oxidation and reduction occurring together, with electrons transferred between species or oxidation numbers changing. The topic covers assigning oxidation states, identifying oxidizing and reducing agents, balancing redox equations by oxidation number or half-reaction methods, and connecting chemical changes with galvanic and electrolytic cells.
Practise Electrochemistry
696 free Electrochemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A reaction in which the same element is both oxidised and reduced is called
A solution of Sodium Sulphate was electrolyzed using some inert electrode; the products at the electrodes are:
Aluminum is refined in _ cell.
Any process of chemical decay of metals due to the action of surrounding medium is called__________________?
At which electrode the reduction of the solution is occurring in Al-Ag cell_____________?