General Knowledge : : Chemistry Questions & Answers

  1. Regarding the atom of a chemical element, the magnetic quantum number refers to:

A. Orientation

B. Shape

C. Size

D. Spin

  1. Which one of the following elements is essential for construction in nuclear reactors?

A. Cobalt

B. Nickel

C. Zirconium

D. Tungsten

  1. Ozone layer is present in:

A. Troposphere

B. Ionosphere

C. Stratosphere

D. Exosphere

  1. The characteristic odour of garlic is due to which one of the following?

A. A sulphur compound

B. A chloro compound

C. A fluorine compound

D. Acetic acid

  1. The most reactive among the halogens is:

A. Fluorine

B. Chlorine

C. Bromine

D. Iodine