General Knowledge : : Chemistry Questions & Answers
- Which of the following metals forms an amalgam with other metals?
A. Tin
B. Mercury
C. Lead
D. Zinc
- An aqueous solution of copper sulphate is acidic in nature because the salt undergoes:
A. Dialysis
B. Electrolysis
C. Hydrolysis
D. Photolysis
- The tip of the matchstick contains:
A. Phosphorus pentoxide
B. White phosphorus
C. Red phosphorus
D. Phosphorus trichloride
- Cobalt - 60 is commonly used in radiation therapy because it emits:
A. Alpha rays
B. Beta rays
C. Gamma rays
D. X - rays
- In an atom, the order of filling up of the orbitals is governed by:
A. Aufbau's principle
B. Heisengberg's uncertainty principle
C. Hund's rule
D. Pauli’s exclusion principle