Previous year MCQs

UPPSC 2012 GS-1 General science
Question

Chlorophyll contains:

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Magnesium

Detailed Solution:

The correct answer is “Magnesium”.
Chlorophyll contains a magnesium ion encased in a large chlorine ring framework.

Similar Questions:

The only vein that carries oxygenated blood is:
  1. A) Pulmonary vein
  2. B) Cystic vein
  3. C) Cardiac vein
  4. D) Hepatic Portal vein
The minimum number of Judges of the Supreme Court required for hearing any case involving interpretation of the Constitution is
  1. A) ten
  2. B) nine
  3. C) seven
  4. D) five
Which among the following is a constituent of natural silk?
  1. A) Phosphorus
  2. B) Nitrogen
  3. C) Magnesium
  4. D) Potassium
The joint where the neck joins the head is:
  1. A) Pivotal joint
  2. B) Saddle joint
  3. C) Hinge joint
  4. D) Ball and socket joint
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
An earth satellite is kept moving in its orbit. It is due to the phenomenon of centripetal force provided by
  1. A) The rocket engine propelling the satellite
  2. B) The gravitational attraction of the Earth on the satellite
  3. C) The gravitational attraction of the Sun on the satellite
  4. D) The gravitational attraction of satellite on Earth
Which one of the following is NOT correctly matched?(Substance) (Use)
  1. A) Silver bromide - Artificial photosynthesis
  2. B) Silver iodide - Artificial rain
  3. C) Lithium bicarbonate - Treatment of rheumatism
  4. D) Milk of magnesia - Antacid
Nutraceuticals are products having:
  1. A) Nutrient vitamin and minerals
  2. B) Nutrient protein and fatty acids
  3. C) Nutritional and toxic effects
  4. D) Nutritional and medicinal effects
Which one of the following liquids is very good conductor of heat?
  1. A) Mercury
  2. B) Water
  3. C) Ether
  4. D) Benzene
Assertion (A): Detergents easily remove oil and dirt from soiled garments.
Reason (R): Detergents increase the surface tension of water.
  1. A) Both A and R are true and R is the correct explanation of A
  2. B) Both A and R are true but R is not the correct explanation of A
  3. C) A is true but R is false
  4. D) A is false but R is true
Which country will host 2014 FIFA World Cup?
  1. A) Brazil
  2. B) Argentina
  3. C) Canada
  4. D) None of the above
Source of Vitamin D is:
  1. A) Lemon
  2. B) Sun rays
  3. C) Orange
  4. D) Cashew nut