The correct statements from the following are : i. $\mathrm{Ca}(\mathrm{OH})_2$ is used in Clark's method of…

The correct statements from the following are : i. $\mathrm{Ca}(\mathrm{OH})_2$ is used in Clark's method of removal of temporary hardness of water ii. $100 \mathrm{~mL}$ of $10 \mathrm{vol} \mathrm{H}_2 \mathrm{O}_2$, on complete decomposition liberates $1 \mathrm{~L}$ of oxygen at STP. iii. Urea can be added to the solution of $\mathrm{H}_2 \mathrm{O}_2$ as stabilizer.
  1. i, ii
  2. ii, iii
  3. i, iii
  4. i, ii, iii

Solution

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Asked in: AP EAMCET 2018 (24 Apr Shift 2)

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