1. Show that nascent hydrogen is powerful reducing agent than molecular hydrogen.
2. List all the possible istopes of hydrogen. Name the isotope which does not contain neutron.
3. Give a reaction which shows that water contains hydrogen.
4. When steam is passed through red hot coke, a mixture of two gasses is obtained. Name the gases and write the reaction involved.
5. What happens when zinc dust is added to an acidified solution of potassium permanganate.
6. Differentiate between ortho and para hydrogen.
7. Mention important uses of eacho of the followings:
    a) Heavy water
    b) Ozone Layer
    c) Hydrogen gas
    d) Deuterium
    e) Tritium
    f) Nascent hydrogen