MCQs For General science For Various Competitive Exams

Multiple Choice Questions

The study of general science involves observing, measuring, and experimenting with different aspects of nature to develop theories and models that explain how the world works. it is essential in shaping our understanding of the world and in developing technologies that have transformed modern society. These MCQs are helpful for various competitive exams like railway, SSC, UPSC etc.

Que: Which of the following element is metal?

a) Hydrogen
b) Oxygen
c) Iron
d) Carbon

Que:2 The pH of a neutral solution is

a) 8
b) 7
c) 6
d) 5

Que: 3 Which of the following is a non-renewable source?

a) Solar Energy
b) Wild Energy
c) Tidal Energy
d) Coal

Que: 4 Which of the following is not a state of matter?

a) Plasma
b) Gas
c) Liquid
d) Solid
e) None of the above

Que: 5 What is the scientific name for the study of plants?

a) Geology
b) Botany
c) Zoology
d) Meteorology

Que: 6 Which of the following is an example of a renewable source?

a) Sunlight
b) Petroleum
c) Coal
d) Natural Gas

Que:7 Which of the following is a component of DNA?

a) Fatty Acids
b) Protein
c) Amino Acid
d) Nucleotide

Que:8 Which of the following is not a type of rock?

a) Sedimentary
b) Metamorphic
c) Water
d) Igneous

Que: 9 What is the number of chromosomes in the human body?

a) 42
b) 44
c) 46
d) 23

Que: 10 How are plant cells different from animal cells?

a) Cell Wall
b) Mitochondria
c) Presence of living matter
d) Cell nucleus

Que:11 What is the normal blood pressure of a healthy person?

a) 100/50
b) 150/100
c) 120/80
d) 80/100

Que: 12 Plant cell wall is made up of:

a) Cellulose
b) Sucrose
c) Fructose
d) Glucose

Que: 13 For which of the following fertilizers, sulphuric acid is being used in large amounts?

a) Phosphate fertilizers
b) Organic fertilizers
c) Potassium Fertilizers
d) Nitrogen Fertilizers

Que: 14 Which part of the body does the Bright disease affect?

a) Spleen
b) Kidney
c) Liver
d) Heart

Que: 15 Lightest elements of the periodic table

a) Osmium
b) Lithium
c) Gallium
d) Mercury

Que: 16 Hardest elements of the periodic table:

a) Diamond
b) Platinum
c) Lanthanide
d) Oganesson

Que:17 Primary, secondary and tertiary amines can be identified by:

a) Fehling’s solution
b) Tollen’s reagent
c) Gignard’s reagent
d) Hinsberg’s reagent

Que: 18 What is the major constituent of gobar gas?

a) Methane
b) Sulphur
c) Nitrogen
d) Carbon dioxide

Que: 19 Which source is associated with a line emission spectrum?

a) Red Traffic light
b) Neon street sign
c) Electric fibre
d) Sun

Que:20 …………….responsible for transportation of water in the plant?

a) Phloem
b) Xylem
c) Stomata
d) Roots

Que:21 The chemical formula of rust is:

a) FeO
b) Fe3O4
c) FeCl3
d) Fe2O3

Que:22 Iron is prevented from rusting by coating with zinc. This process is called:

a) Reduction
b) Evaporation
c) Condensation
d) Galvanization

Que:23 C3H9N can have how many structural isomers?

a)2
b) 3
c)4
d) 5

Que:24  Acid rain is due to:

a) SO3 and CO
b) O3 and dust
c) SO2 and NOx
d) CO2 and CO

Que: 25 Which type of lens is used to correct the vision of a person suffering from Myopia?

a) Convex lens
b) Concave lens
c) Cylindrical lens
d) None of the above

Que: 26 The organelles in which aerobic respiration occurs in a cell are:

a) Chloroplast
b) Ribosomes
c) Mitochondria
d) Dictyosomes

Que: 27 Water percentage in plasma is:

a) 60%
b) 70%
c) 80%
d) 90%

Que:28 The drug most widely tried against the AIDS virus is:

a) miconazole
b) Virazole
c) nonoxynol-9
d) zidovudine (azidothymidine)

Que: 29 Ozone layer above the surface of the earth protects from…..

a) Heat
b) Ultraviolet rays
c) Shooting stars
d) Meteors

Que: 30 Which microorganism causes hepatitis B?

a) Bacteria
b) Virus
c) Protozoa
d) None of the above