Previous year MCQs

General science UPPSC 2007 GS-I
Question

Which of the following is not a molecule atomic particle?

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Deuteron

Detailed Solution:

The correct answer is “Deuteron”.
A deuteron is actually a nucleus of a deuterium atom, which consists of one proton and one neutron. So, it's composed of both protons and neutrons, making it a composite particle, not an elementary one.

Similar Questions:

Given below are two statements, one labelled as:

Assertion (A): Human body synthesises all the vitamins required by it.
Reason (R): Vitamins are essential for proper growth of the body.

Select the correct answer from the codes give below:
  1. A) Both (A) and (R) are true and (R) is the correct explanation of (A)
  2. B) Both (A) and (R) re 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 of the following is/are used as disinfectant of water?
  1. A) Ozone
  2. B) Chlorine dioxide
  3. C) Chloramine
  4. D) All of the above
Chlorophyll contains:
  1. A) Iron
  2. B) Copper
  3. C) Magnesium
  4. D) Manganese
In Three pin electric plug longest pin should be connected with:
  1. A) Earth end
  2. B) Live end
  3. C) Neutral end
  4. D) Any end
Which of the following statements about enzymes is/are correct?

1. They are biocatalysts.
2. They perform their action on the site where they are produced.

Select the correct answer from the codes given below:
Codes:
  1. A) 1 only
  2. B) 2 only
  3. C) Both 1 and 2
  4. D) Neither 1 nor 2
In which part of the cinchona plant quinine occurs naturally?
  1. A) Root
  2. B) Fruit
  3. C) Seed
  4. D) Bark
Bauxite is an ore of:
  1. A) Lead
  2. B) Aluminium
  3. C) Zinc
  4. D) Copper
The stones present in the gall bladder affect the digestion of:
  1. A) Protein
  2. B) Carbohydrate
  3. C) Fat
  4. D) Nucleic acid
In human body digestion of Protein begin in which of the following organs ?
  1. A) Liver
  2. B) Mouth
  3. C) Small Intestine
  4. D) Stomach
The word "Arya" literally means:
  1. A) Best
  2. B) Scholar
  3. C) Priest
  4. D) Warrior
The brain is responsible for
  1. A) thinking
  2. B) regulating the heartbeat
  3. C) balancing the body
  4. D) All of the above three
A BOD in a water body, the excess of BOD indicates that its water is:
  1. A) Gaining minerals
  2. B) Getting gaseous
  3. C) Is polluted with sewage
  4. D) Atrophic