Diamond is harder than Graphite because of___________?

Related Mcqs:

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

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

   Submitted by: Fahad Mehsud

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. The luster of diamond is due to_________?

   A. Reflection
   B. Total internal reflection
   C. Refraction
   D. None of these

   Submitted by: Afzal Chaudhry

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

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

   Submitted by: Mansoor Ahmed Suhag

6. UV light falls in the category of___________?

   A. Ionizing Radiations
   B. Non Ionizing Radiation
   C. Visible light
   D. None

7. Disease beri beri is because of___________?

   A. Lack of green vegetables in diet
   B. Use of milled rice
   C. Deficiency of calcium in bones
   D. Poor use of citrus fruits

   Submitted by: Irum perveen

8. Mach number is used in connection with the speed of___________?

   A. Ship
   B. Light
   C. Sound
   D. aircraft

   Submitted by: Fahad Mehsud

9. Permanent hardness of water may be removed by the addition of___________?

   A. Sodium Carbonate
   B. Alum
   C. Potassium Permanganate
   D. Lime

   Submitted by: Warraich

10. SONAR is based on the principle of___________?

    A. Echo
    B. reverberation
    C. resonance
    D. None of these

    Submitted by: Abid Otho