Posted On : 04-Jul-2018

Q1: Which of the following metals has been used in making the Statue of Liberty?

• A. gold
• B. iron
• C. bronze
• D. copper

Q2: Metals are good conductors of electricity because

• A. they are electrically unstable
• B. atoms in their molecules are loosely packed
• C. they have free electrons
• D. they are ductile

Q3: Into which of the following metals does radioactive Uranium decay when it loses all its radioactivity?

• A. Radium
• B. Carbon
• C. Lead
• D. Hydrogen

Q4: Galvanized iron has a thin coating of :

• A. copper
• B. tin
• C. zinc
• D. aluminium

Q5: The Venus symbol (?), a circle with a small cross below it, is the gender symbol for female and also the metal -

• A. gold
• B. copper
• C. zinc
• D. silver

Q6: Plumbism is a condition due to the poisoning effect of -

• A. lead
• B. mercury
• C. copper
• D. uranium

Q7: Duralumin is an alloy of copper and

• A. lead
• B. zinc
• C. tin
• D. aluminium

Q8: In which of the following metals is the speed of sound the fastest?

• A. copper
• B. aluminium
• C. steel
• D. gold

Q9: Which of the following is the heaviest metal?

• A. gold
• B. osmium
• C. mercury
• D. lead

Q10: Which of the following gases is responsible for discolouration of brass in air?

• A. nitrogen oxide
• B. carbon dioxide
• C. water vapour
• D. hydrogen sulphide