General science UPPSC 1993 GS-I
Question

Which of the following contains carbon?

Answer & Solution

Answer: (Detailed Solution Below)

Option A: Lignite

Detailed Solution:

The correct answer is “Lignite”.

Lignite is a type of coal and is composed primarily of carbon. It is a sedimentary rock formed from partially decomposed plant material. The other options, tin, silver, and iron, are metals and do not contain carbon.

Similar Questions:

Match list-I with list-II and select the correct answer using the code given below:
List-I - List-I

A. Malaria - 1. Bone Marrow
B. Filaria - 2. Brain
C. Encephalitis - 3. Muscle
D. Leukemia - 4. Lymph node
5. Blood cells

Code:
A B C D
  1. 5 3 2 1
  2. 5 4 2 1
  3. 4 3 5 1
  4. 5 4 1 2
Human heart is made up of how many chambers?
  1. Only four
  2. Only one
  3. Only three
  4. Only two
Heavy water is a type of
  1. Coolant
  2. Moderator
  3. Ore
  4. Fuel
Which of the following air pollution gets dissolve in haemoglobin of the blood more rapidly than oxygen?
  1. PAN
  2. Carbon dioxide
  3. Carbon monoxide
  4. Ozone
As compared to boiling water, steam causes more burn to the hand because of
  1. Steam has latent heat
  2. Steam enters in the body
  3. Steam has more orbit
  4. Steam is light weight
"Neno plug" refers to:
  1. a small bullet
  2. a small hearing aid
  3. a small rocket launcher
  4. None of the above
Which of the following is used in Genetic-Engineering?
  1. Plastid
  2. Plasmid
  3. Mitochondria
  4. Ribosome
Laser is a device for producing
  1. spontaneous radiation
  2. dispersed radiation
  3. scattered radiation
  4. stimulated radiation
Which of the following statements is not correct?
  1. Air conditioners and air coolers both regulate the temperature
  2. Air conditioners and air coolers both regulate the humidity
  3. Air condition control humidity but air cooler does not control humidity
  4. Both controls the speed of air
Consider the following statements and give the answer with the help of codes given below:

Assertion (A): Only one side of the moon's surface is visible from the earth.
Reason (R): The period of rotation of the moon on its axis is equal to the period of its revolution round the earth.

Code:
  1. Both A and R are correct and R is the correct explanation of A.
  2. Both A and R are correct but R is not the correct explanation of A.
  3. A is correct but R is wrong.
  4. A is wrong but R is correct.
Which one of the following pairs is not correctly matched?
  1. Dry ice:solid carbon dioxide
  2. Mustard gas:poisonous liquid used in chemical warfare
  3. Teflon:polymer containing fluorine
  4. Fullerene:organic compounds containing fluorine
Refrigeration helps in food preservation by
  1. killing of germs (bacteria)
  2. reducing the rate of biochemical reaction
  3. destroying the enzyme action
  4. sealing food with a layer of ice