Which one is a conductor but is not malleable ?

Related Mcqs:

1. A malleable solid is one which can be_________________?

   A. Converted into wires
   B. Converted into thin sheets
   C. Melted easily
   D. All of the above

2. Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________?

   A. ionic substances
   B. metallic substances
   C. molecular solids
   D. covalent network solids

   Submitted by: Mansoor Ul Haque

3. Vapour pressure is not affected by_______________?

   A. Surface area
   B. temperature
   C. intermolecular forces
   D. atmospheric pressure

4. Amorphous substances posses_________________?

   A. No definite geometry
   B. No definite heat of fusion
   C. No sharp melting points
   D. All of the above

5. Boiling points of hydrocarbons increase with the increase in number of carbon atoms. It is mainly due to_________________?

   A. More strength of H-bonding
   B. More strength of London forces
   C. Less polarizability
   D. All of the above

6. Which has strongest bonding in the solid state ?

   A. Hydrogen Chloride (HCI)
   B. Chlorine (Cl2)
   C. Xenon(Xe)
   D. Sodium Chloride (NaCI)

7. The conversion of vapours back into their liquid state is called__________________?

   A. crystallization
   B. evaporization
   C. vaporization
   D. condensation

8. When water freezes at 0°C its density decreases due to_______________?

   A. Change of bond angles
   B. Cubic structure of ice
   C. Empty space present in the structure of ice
   D. Change of bond length

9. Crystallites are present in_________________?

   A. crystalline solids
   B. amorphous solids
   C. liquid crystals
   D. all of the above

10. If a physical and chemical change takes place at a constant pressure then the heat change during the process is called__________________?

    A. Heat of transition
    B. Heat of fusion
    C. Enthalpy change
    D. All of above