Black gold is an oil; Black diamond is_________?

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

Submitted by: Mansoor Ahmed Suhag

Black gold is a liquid based term applied to oil or petroleum, which comes in black color when it comes out of the ground and is worth a great deal of money. Petroleum is black gold and coal is black diamond.

Related Mcqs:

The ratio of pure gold in 18 carat gold is _______________?
A. 0.5
B. 0.9
C. 0.8.5
D. 0.75
Submitted by: WIQAR AHMAD
In an oil lamp, the oil rises up in the wick due to?
A. Capillary action
B. Atmospheric pressure
C. Viscosity of oil
D. Change in temperature
Submitted by: Ashfaque Ali Khoso
Oil rises in a wick of oil lamp on account of a property of matter is called?
A. Angle of projection
B. Determines
C. Capillary action
D. Refraction of light
Submitted by: Mansoor Ahmed Suhag
Oil of vitriol is_________?
A. Nitric acid
B. Hydrochloric acid
C. Phosphoric acid
D. Sulfuric acid
Submitted by: ABDUL HAYEE
Diamond is an allotropic form of_______?
A. Carbon
B. Hydrogen
C. Nitrogen
D. Silicon
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
The luster of diamond is due to_________?
A. Reflection
B. Total internal reflection
C. Refraction
D. None of these
Submitted by: Afzal Chaudhry
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
Carbon,Diamond and Graphite are together called:___________?
A. Allotrope
B. Isomers
C. Isomorphs
D. Isotopes
Submitted by: Fahad Mehsud
What is the symbol of Gold?
A. Ag
B. Au
C. S
D. None
Submitted by: Kamran Rasool Brohi