Previous year MCQs

General science UPPSC 1997 GS-I
Question

Bauxite is an ore of:

Answer & Solution

Answer: (Detailed Solution Below)

Option B: Aluminium

Detailed Solution:

The correct answer is “Aluminium”.
Bauxite is an ore of Aluminium with chemical formula Al2O3.2H2O.

Similar Questions:

Pyrometer is used for measuring:
  1. A) Air Pressure
  2. B) Humidity
  3. C) High Temperature
  4. D) Intensity of Earthquake
Which of the following is used in fire alarm ?
  1. A) Photo cell
  2. B) Water
  3. C) Solar cell
  4. D) None of the above
Heroin is obtained from-
  1. A) Indian hemp
  2. B) Opium poppy
  3. C) Tobacco
  4. D) Arecanut
The difference between nuclear reactor and atom bomb is that:
  1. A) There is no chain reaction in nuclear reactor where as this happens in atom bomb
  2. B) The chain reaction in nuclear reactor is controlled
  3. C) The chain reaction in nuclear reactor is not controlled
  4. D) Atom bomb is based on nuclear fusion whereas in nuclear reactor, nuclear fission occurs
Match List I with List II and select the correct answer from the code given below:
List-I - List-II

A. Dry Ice - 1. Treatment of Cancer
B. Gene therapy - 2. Freezing living bodies to be revived later
C. Cryonics - 3. Solid carbon dioxide
D. Cobalt-60 - 4. Treatment of blood diseases

A B C D
  1. A) 1 2 3 4
  2. B) 4 3 2 1
  3. C) 3 4 2 1
  4. D) 2 1 4 3
Why does water boil at temperature below 100°C at higher altitudes?
  1. A) The atmospheric pressure decreases and hence boiling point is lowered
  2. B) The gravitational attraction is less
  3. C) Because of heavy winds in mountains
  4. D) None of the above is correct
Which of the following would be the smallest and fastest computer imitating brain working?
  1. A) Super computer
  2. B) Quantum computer
  3. C) Param-10,000
  4. D) IBM chips
Which one of the following hormones stimulates pancreas for the production of digestive juice?
  1. A) Rennin
  2. B) Trypsin
  3. C) Secretin
  4. D) Pepsin
In which of the following industries is mica used as a raw material?
  1. A) Iron and Steel
  2. B) Toys
  3. C) Glass and Pottery
  4. D) Electrical
Cholestrol is
  1. A) an insecticide
  2. B) a vitamin
  3. C) a steroid
  4. D) an enzyme
A fluorescent tube is preferred to an electric bulb because:
  1. A) It has a larger light emitting surface
  2. B) Voltage fluctuations do not affect it
  3. C) In a tube electrical energy is almost full converted into light.
  4. D) None of the above
Which yeast is used for commercial production of ethanol?
  1. A) Candida Albicans
  2. B) Saccharomyces cerevisiae
  3. C) Candida sloofi
  4. D) Leucosporidium frigidum