Correct Marks 1
Incorrectly Marks 0
Q 1. Which of the following properties is generally not shown by metals?
Ductility
Sonorous
Dullness
Electrical conduction
Correct Marks 1
Incorrectly Marks 0
Q 2. Which of the following non-metal is a liquid?
Sulphur
Phosphorus
Carbon
Bromine
Correct Marks 1
Incorrectly Marks 0
Q 3. The metal which is stored in kerosene:
Phosphorus
Magnesium
Sodium
Zinc
Correct Marks 1
Incorrectly Marks 0
Q 4. All metals are solids except:
Sodium
Calcium
Mercury
Hydrogen
Correct Marks 1
Incorrectly Marks 0
Q 5. Metal oxides are of nature:
Acidic
Basic
Neutral
All of these
Correct Marks 1
Incorrectly Marks 0
Q 6. Which one of the following metal is the most ductile?
Aluminium
Copper
Silver
Gold
Correct Marks 1
Incorrectly Marks 0
Q 7. Metals are
soft and brittle
hard and solid
liquid
generally liquid
Correct Marks 1
Incorrectly Marks 0
Q 8. Materials having qualities of both metals and non-metals are
alloys
metalloids
noble metals
none of these
Correct Marks 1
Incorrectly Marks 0
Q 9. Which of the following element is not found in free state in the nature?
Silver
Copper
Sodium
Gold
Correct Marks 1
Incorrectly Marks 0
Q 10. Epsom salt is
{tex}CuSO_4{/tex}
{tex}MgSO_4·7H_2O{/tex}
{tex}NH_2CONH_2{/tex}
{tex}(NH_4)_2SO4{/tex}
Correct Marks 1
Incorrectly Marks 0
Q 11. An ore gives off {tex}SO_2{/tex} when heated with {tex}O_2{/tex} This ore is concentrated by -
gravity separation method
magnetic separation method
froth flotation method
chemical method