diamond got brilliance due to following reason?

Related Mcqs:

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

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

   Submitted by: Fahad Mehsud

2. Fruit juices and fizzy drinks such as lemonade are often sold in aluminium cans. What is the most important reason aluminium is a suitable metal ?

   A. aluminium can be recycled
   B. aluminium has very low density
   C. aluminium is the most abundant metal in the earth crust
   D. aluminium is resistant to corrosion by organic acids.

3. The boiling point increases down the zero group element due to_________________?

   A. Ion dipole forces
   B. London forces
   C. Hydrogen bonding
   D. Dipole dipole forces

4. Rising of a wetting liquid in a capillary tube is due to__________________?

   A. Surface tension
   B. Cohesive forces
   C. Adhesive forces
   D. viscosity

5. Spectrum is produced due to________________?

   A. Different wavelength
   B. Different colours
   C. Different intensities
   D. all have little contribution

6. Different components of a mixture have different Rf values due to________________?

   A. Polar solvent used
   B. Combination of solvents used
   C. Their different distribution coefficients in the solvent
   D. Distributive law

7. The spreading of fragrance or scent in air is due to_______________?

   A. Diffusion
   B. Effusion
   C. Attraction with air
   D. Low dsensity

8. Electricity in voltaic cell is produced due to_________________?

   A. neutralization
   B. oxidation
   C. reduction
   D. both B & C

9. Carbonates of lithium are not stable like that of sodium due to________________?

   A. Low electronegativity
   B. Low electropositivity
   C. Low charge density
   D. Not known yet

10. Grignard reagent is reactive due to___________________?

    A. the presence of halogen atom
    B. the presence of magnesium atom
    C. the polarity of C-Mg bond
    D. all