TS EAMCET · Chemistry · Some Basic Concepts of Chemistry
Which one of the following given highest volume of \(\mathrm{O}_2\) at STP on complete decomposition?
- A \(2 \mathrm{~mL}\) of \(100 \mathrm{VH}_2 \mathrm{O}_2\)
- B \(500 \mathrm{~mL}\) of \(30 \mathrm{VH}_2 \mathrm{O}_2\)
- C \(1 \mathrm{~L}\) of \(10 \mathrm{VH}_2 \mathrm{O}_2\)
- D \(100 \mathrm{~mL}\) of \(20 \mathrm{VH}_2 \mathrm{O}_2\)
Answer & Solution
Correct Answer
(B) \(500 \mathrm{~mL}\) of \(30 \mathrm{VH}_2 \mathrm{O}_2\)
Step-by-step Solution
Detailed explanation
\[ \begin{array}{r} \underset{2 \mathrm{vol}(\mathrm{or} 68 \mathrm{~g})}{2 \mathrm{H}_2 \mathrm{O}_2} \rightleftharpoons 2 \mathrm{H}_2 \mathrm{O}+\underset{1}{\mathrm{O}_2(g)} \\ =22400 \mathrm{~mL} \text { at STP } \end{array} \] By definition of volume strength (a) 100 vol…
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