COMEDK · Chemistry · 1. Some Basic Concepts of Chemistry
What is the volume of '\(20\) volume \(\mathrm{H}_{2} \mathrm{O}_{2}\)' required to get \(5000 \mathrm{~cm}^{3}\) of oxygen at STP?
- A \(250 \mathrm{~cm}^{3}\)
- B \(50 \mathrm{~cm}^{3}\)
- C \(100 \mathrm{~cm}^{3}\)
- D \(125 \mathrm{~cm}^{3}\)
Answer & Solution
Correct Answer
(A) \(250 \mathrm{~cm}^{3}\)
Step-by-step Solution
Detailed explanation
20 volume of \(\mathrm{H}_{2} \mathrm{O}_{2}\) means that, \(1 \mathrm{~L}\) of \(\mathrm{H}_{2} \mathrm{O}_{2}\) on decomposition gives 20 L of oxygen. \(\therefore 5 \mathrm{~L}\) of oxygen will be obtained from…
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