GK Quiz on Chemistry

1. An ____________ is the smallest unit of an element.
a) Isotopes
b) Metal
c) Atom
d) Magnet

2. Everything in the universe is made of a combination of a few basic substances called _____________________.
a) Elements
b) Air
c) Metal
d) Gases

3. _________________ is a material that is added to a reaction mixture to accelerate the process but is itself not consumed.
a) Ethanol
b) Salt
c) Coal
d) Catalyst

4. The substance, which produce heat and light on combustion are called ________________.
a) Fuels
b) Gas
c) Acid
d) None of these

5. ____________________________ is a mixture of hydrocarbons containing three or four carbon atoms, such as propane, butane and pentane.
a) Natural Gas
b) Liquified Petroleum Gas
c) Methane Gas
d) Hydrogen Gas

6. _____________________is made up of carbon.
a) Salt
b) Gas
c) Acid
d) Coal

7. __________________ are chemical compounds that taste sour, turn litmus red, and often react with some metals to produce hydrogen gas.
a) Acids
b) Alcohol
c) Glucose
d) Bases

8. _______________ are chemical compounds that taste bitter, turn litmus blue and feel slippery.
a) Acids
b) Bases
c) Coal
d) Salts

9. ______________________ consist of very long molecules, each composed of carbon atoms linked into chains.
a) Pencils
b) Rubbers
c) Plastics
d) Acids

10. The small molecular building units are called ______________________.
a) Nylon
b) Polythylene
c) Ronomers
d) Monomers