Chemistry quiz'15 - part - 2 By Amith AK

1. CHEMISTRY QUIZ
AMITH AK

2. Tennis balls are made by placing
a pellet of sodium nitrite and
ammonium chloride, each, in two
halves of the ball which are then
sealed. When these pellets react.
They release a gas which
expands the tennis ball. Can you
identify the gas?

3. Nitrogen

4. Streptomycin is a chemical drug
that is effective in the treatment
of tuberculosis, meningitis and
pneumonia. It was isolated from
the bacterial culture by?

5. Dr.waksman in 1944

6. Large deposits of borax, an
useful mineral, are found in?

7. USA

8. Shells and corals of the sea
contain calcium in the form of?

9. Aragonite

10. Which scientist discovered that
the same amount of space was
occupied by equal numbers of
molecules of gases, irrespective
of whether it was hydrogen or
chlorine or fluorine?

11. Avogadro(Italy)

12. Glyptal(alkyd resins) are
polyesters of acids and
polyhydric alcohols. They are
used in the manufacture of?

13. Paints and lacquers

14. THANK YOU