What are the metal bearing rocks called?

Related Mcqs:

1. When methl iodide and ethyl iodide are treated with sodium metal possible major products are obtained ?

   A. 1
   B. 2
   C. 3
   D. 4

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 oxidation number of central metal atom in [Ni(CO)4] is_________________?

   A. 0
   B. 2
   C. 4
   D. 6

4. First ionization potential of alkaline earth metal is greater than alkali metals because___________________?

   A. They are more reactive
   B. They have greater atomic radii
   C. They have smaller atomic sizes
   D. All

5. Boron is non metal while other elements of IIIA group are metals. This is because______________?

   A. it has small size
   B. it has high nuclear charge
   C. it forms molecular addition compounds
   D. all of the above

6. The element of group VIA which is a non-metal is________________?

   A. S
   B. Se
   C. Te
   D. Po

7. The metallurgical process in which a metal is obtained in a fused state is called__________?

   A. smelting
   B. roasting
   C. calcinations
   D. froth floatation

   Submitted by: Muhammad Ali Kunbhar

8. Which metal is used as a reducing agent in Smelting______?

   A. C
   B. Zn
   C. Al
   D. Cu

   Submitted by: Muhammad Ali Kunbhar

9. A brivalent metal has the equivalent weighr of 12. The molecular weight to its oxide will be_______?

   A. 24
   B. 32
   C. 36
   D. 40

   Submitted by: Muhammad Ali Kunbhar

10. The weight of a metal of equivalent of 12 which will give 0.475g of its chloride is_______?

    A. 0.12g
    B. 0.16g
    C. 0.18g
    D. 0.24g

    Submitted by: Muhammad Ali Kunbhar