XII - CHEMISTRY | ONLINE ONE MARK TEST | L - 1,2,3,4,6,7,8,11,12

Time Remaining: 05:00

Class 12 Chemistry: 10-Question Revision Test

Select your answers below. Click "Submit & Check Answers" to automatically identify any wrong questions.

1. Which of the metal is extracted by Hall-Heroult process?
   A) Al
   B) Ni
   C) Cu
   D) Zn
2. Which of the following metals has the largest abundance in the earth's crust?
   A) Aluminium
   B) calcium
   C) Magnesium
   D) sodium
3. Among the following, which is the strongest oxidizing agent?
   A) Cl2
   B) F2
   C) Br2
   D) I2
4. Permanganate ion changes to ______ in acidic medium.
   A) MnO4 2-
   B) Mn2+
   C) Mn3+
   D) MnO2
5. Solid CO2 is an example of:
   A) Covalent solid
   B) metallic solid
   C) molecular solid
   D) ionic solid
6. The addition of a catalyst during a chemical reaction alters which of the following quantities?
   A) Enthalpy
   B) Activation energy
   C) Entropy
   D) Internal energy
7. The pH of an aqueous solution is Zero. The solution is:
   A) slightly acidic
   B) strongly acidic
   C) neutral
   D) basic
8. Carbolic acid is:
   A) Phenol
   B) Picric acid
   C) benzoic acid
   D) phenylacetic acid
9. Which one of the following reduces tollens reagent?
   A) formic acid
   B) acetic acid
   C) benzophenone
   D) none of these
10. Zinc is obtained from ZnO by:
    A) Carbon reduction
    B) Reduction using silver
    C) Electrochemical process
    D) Acid leaching

Scroll up to see your results! Correct answers are highlighted in green. Wrong or unattempted answers are highlighted in red.