Previous year MCQs

General science UPPSC 1996 GS-I
Question

The nucleus of an atom consists of:

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Protons and Neutrons

Detailed Solution:

The correct answer is “Protons and Neutrons”.
The nucleus of an atom consists of Protons and Neutrons. Electrons orbit the nucleus, but they are not part of it. Radon is a chemical element and is not a component of the nucleus.

Similar Questions:

Assertion (A): A black hole is an astronomical entity that cannot be seen by telescope.
Reason (R): The gravitational field on a black hole is so strong that it does not allow even light to escape.

Select the correct answer using the codes given below:
Codes:
  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
Photovoltaic cells are:
  1. A) Solar cells
  2. B) Thermal cells
  3. C) Sulphur cells
  4. D) Molar cells
Which compound present in D.N.A. does not form amino acid?

1) Adenine
2) Tyrosine
3) Guanine
4) Cystosine
  1. A) 1 and 2
  2. B) 1 and 3
  3. C) 2, 3 and 4
  4. D) 2 and 3
Of which one group of Nations is Brunei a member?
  1. A) N.A.T.O.
  2. B) E.E.C.
  3. C) S.A.A.R.C.
  4. D) A.S.E.A.N.
The Hindu rate of growth refers to the growth rate of:
  1. A) Per Capita Income
  2. B) National Income
  3. C) Population
  4. D) Literacy
Match List-I with List-II and select the correct answer using the codes given below the lists.
List-I List-II
(Disease) (Cause)

A. Marasmus - 1. Prolonged Starvation
B. Kwashiorkor - 2. Protein Deficiency
C. T.B. - 3. Bacterial Infection
D. Hepatitis B - 4. Viral Infection
  1. A) 1 2 3 4
  2. B) 2 1 3 4
  3. C) 4 2 3 1
  4. D) 2 4 1 3
The Tornadoes are very strong tropical cyclones originating in:
  1. A) Caribbean sea
  2. B) China Sea
  3. C) Arabian Sea
  4. D) Black Sea
Which acid is used in photography:
  1. A) Formic acid
  2. B) Oxalic acid
  3. C) Citric acid
  4. D) Acetic acid
An enzyme which helps in the digestion of protein is
  1. A) Urease
  2. B) Ssulfatase
  3. C) Trypsin
  4. D) Protease
Quinine, the effective medicine in the treatment of malaria, is extracted from
  1. A) Bark of Cinnamon
  2. B) Leaves of Ocimum
  3. C) Bark of Cinchona
  4. D) Bark of Acacia Catechu
Which one of the following concerns soil?
  1. A) Edaphic
  2. B) Climatic
  3. C) Biotic
  4. D) Topography
Which of the following is the richest source of Vitamin C?
  1. A) Orange
  2. B) Apple
  3. C) Carrot
  4. D) Amla