The luster of diamond is due to_________?

Related Mcqs:

1. The cracking sound heard when dry hair is combed with a hard rubber comb is due to_________?

   A. The hair barging against the charged comb
   B. Small electric sparks
   C. The rubbing of the comb with the hair
   D. None of the above

2. Diamond is an allotropic form of_______?

   A. Carbon
   B. Hydrogen
   C. Nitrogen
   D. Silicon

3. Diamond is a very expensive ornament. It is composed of a single element ___________?

   A. Carbon
   B. Gold
   C. Silver
   D. Platinum
   E. None of these

4. Black gold is an oil; Black diamond is_________?

   A. Copper
   B. Iron
   C. Coal
   D. Wood

   Submitted by: Mansoor Ahmed Suhag

5. Diamond is harder than Graphite because of___________?

   A. Difference in crystalline Structure
   B. Tetrahedral structure of diamond
   C. Difference in layer of atoms
   D. None of these

   Submitted by: Malik Asghar Hussain

6. Carbon,Diamond and Graphite are together called:___________?

   A. Allotrope
   B. Isomers
   C. Isomorphs
   D. Isotopes

   Submitted by: Fahad Mehsud

7. The term xerostomia refers to_________?

   A. dry skin
   B. dry mouth
   C. dry nose
   D. dry head

   Submitted by: Kashif Ali Gaad

8. The shape of the external ear is due to____________?

   A. Elastic cartilage
   B. Fibrocartilage
   C. Articular cartilage
   D. none

9. The increasing vapor pressure caused by heating a liquid is due to___________?

   A. increase inter-molecular interactions
   B. increasing potential energy of molecules
   C. increasing kinetic energy of molecules
   D. decreasing surface tension

   Submitted by: Mansoor Ul Haque

10. Permanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ?

    A. Zeolites
    B. Sulphonides
    C. Lime
    D. Nitrates

    Submitted by: Rashid Mehmood