1. Monosodium salt of oxalic acid is titrated with NaOH solution. In the second titration it is titrated with KMnO4 solution. The ratio of equivalent weights of monosodiumoxalate is ....?
2. 1.12 ml of a gas is produced at STP by the action of 4.12 mg of alcohol, ROH, with methyl magnesium iodide. The molecular mass of alcohol is.....?