Embibe Experts Solutions for Chapter: Hydrogen, Exercise 1: Exercise 1

The $\mathrm{ortho}$ and $\mathrm{para}$ hydrogens possess:

Which of the following metals can liberate hydrogen, on reacting with dilute hydrochloric acid?

Hydrides are not formed by

A $5.0\mathrm{mL}$ of solution of ${\mathrm{H}}_2{\mathrm{O}}_2$ liberates $0.508\mathrm{g}$ of iodine from acidified $\mathrm{KI}$ solution. Calculate the strength of ${\mathrm{H}}_2{\mathrm{O}}_2$ solution in terms of volume strength at STP. (Molar volume at STP is $22.4\mathrm{L}$ and atomic weight of Iodine is $127$)