CHEMISTRY ONE LINER SET 10

CHEMISTRY ONE LINER SET 10

1. In an atomic nucleus, by which force are neutrons and protons held together? Exchange forces
 
2. By which a mixture of naphthalene and benzoic acid can be separated? Chromatography
 
3. By which Carbon and hydrogen are estimated in organic compounds? Liebig’s method
 
4. Which isotope of uranium capable of sustaining chain reactions? U-235
 
5. Which is natural source of gamma-rays? Radon gas
 
6. Which is the substance which can act both as an acid and a base? Amphoteric
 
7. Where is the Smog is likely to occur? Near the industrial areas
 
8. Which property of the elements is a whole number? Atomic number
 
9. What are the atoms of the elements which have same number of neutrons
called?
Isotones
 
10. What happens to the level of mercury in the barometer tube when it is taken
down a coal mine?
It rises