Chemistry Quiz 4 Campus Tutor 3rd September

Which of the following is a characteristic of a non-metal ?

• Malleable

• Lustrous

• Ductile

• Brittle

Which of the following is not a noble gas ?

• Helium

• Argon

• Hydrogen

• Neon

Which of the following metals is most reactive with cold water ?

• Potassium

• Mercury

• Aluminium

• Gold

What kind of mixture is a salt solution in water ?

• Heterogeneous

• Homogeneous

• Both

• None of the above

What is the valency of sodium ?

• -1

• 2

• 1

• 3

Which of the following elements do not have more than one valency ?

• Iron

• Magnesium

• Platinum

• Copper

What is the chemical formula of chalk ?

• $CH_6COOH$

• $CaCO_3$

• $PbO$

• $CH_3OH$

What is the symbol of cobalt ?

• Cb

• Co

• C

• Ct

What is the symbol of hydrogen chloride ?

• HC

• CD

• HD

• HCl

What is the valency of phosphate ?

• 2

• 3

• -2

• -3