General Science MCQ

Test your knowledge with important General Science MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more General Science MCQs at Bissoy

• Decibel is the unit used for:
  ক

  Speed of light

  খ

  Intensity of heat

  গ

  Intensity of sound

  ঘ

  Radio wave frequency
• Newton is the unit of:
  ক

  Force

  খ

  Momentum

  গ

  Acceleration due to gravity

  ঘ

  Velocity
• The percentage of oxygen present in air is approximately-
  ক

  44%

  খ

  23%

  গ

  40%

  ঘ

  21%
• What are metal bearing rocks called?
  ক

  Bitumen

  খ

  Bauxite

  গ

  Metalloids

  ঘ

  Ores
• Which is the absolute temperature scale?
  ক

  Celsius

  খ

  Fahrenheit

  গ

  Kelvin

  ঘ

  All of these
• Which layer protects earth from harmful rays of the Sun?
  ক

  Ionosphere

  খ

  Ozone layer

  গ

  Troposphere

  ঘ

  Magnetosphere
• Noise or Noise pollution measured in:
  ক

  Phon

  খ

  Deci

  গ

  Decibel

  ঘ

  Decimal
• Which of the following schemes is launched for the school going children:
  ক

  Lok Jumbish

  খ

  Mid day meal

  গ

  Sarva Shiksha Abhiyan

  ঘ

  Ayush
• AIDS is caused by:
  ক

  Bacteria

  খ

  Fungus

  গ

  Helminth

  ঘ

  Virus
• BACK TO VILLAGES slogan was given by:
  ক

  Lenin

  খ

  Mao

  গ

  Nehru

  ঘ

  Patel
• What cause a moving body to resist a change in its state of motion?
  ক

  Displacement

  খ

  Acceleration

  গ

  Inertia

  ঘ

  Velocity
• Which one of the following is the petroleum wax?
  ক

  Paraffin wax

  খ

  Jonoba wax

  গ

  Carnauba wax

  ঘ

  Bees wax
• The type of glass used in making lenses and prisms is
  ক

  Jena glass

  খ

  Soft glass

  গ

  Pyrex glass

  ঘ

  Flint glass
• Soap is a mixture of sodium or potassium salts of
  ক

  Dicarboxylic acids

  খ

  Mono-carboxylic acids

  গ

  Glycerol

  ঘ

  Tricarboxylic acids
• Gypsum is added to cement clinker to
  ক

  Increase the tensile strength of cement

  খ

  Decrease the rate of setting of cement

  গ

  Facilitate the formation of colloidal gel

  ঘ

  Bind the particles of calcium silicate
• Paper is manufactured by
  ক

  Wood and resin

  খ

  Wood, sodium and bleaching powder

  গ

  Wood, calcium, hydrogen sulphide and resin.

  ঘ

  Wood and bleaching powder
• The vast resources of unutilised natural gas can be used in the production of
  ক

  Graphite

  খ

  Synthetic petroleum

  গ

  Fertilisers

  ঘ

  Carbide
• Glass is made of the mixture of:
  ক

  Quartz and mica

  খ

  Sand and silicates

  গ

  Salt and quartz

  ঘ

  Sand and salt
• Deep blue colour is imparted to glass by the presence of
  ক

  Cupric oxide

  খ

  Nickel oxide

  গ

  Cobalt oxide

  ঘ

  Iron oxide
• In vulcanisation, natural rubber is heated with
  ক

  Carbon

  খ

  Silicon

  গ

  Sulphur

  ঘ

  Phosphorous
• How does common salt help in separating soap from the solution after saponification?
  ক

  By decreasing density of Soap

  খ

  By decreasing solubility of Soap

  গ

  By increasing density of Soap

  ঘ

  By increasing solubility of Soap
• What are the soaps?
  ক

  Salts of silicates

  খ

  Mixture of glycerol and alcohols

  গ

  Sodium or potassium salts of heavier fatty acids

  ঘ

  Esters of heavy fatty acids
• The major ingredient of leather is:
  ক

  Collagen

  খ

  Carbohydrate

  গ

  Polymer

  ঘ

  Nucleic acid
• Optical fibers are mainly used for which of the following?
  ক

  Musical instruments

  খ

  Food industry

  গ

  Weaving

  ঘ

  Communication
• Rayon is chemically a
  ক

  Cellulose

  খ

  Pectin

  গ

  Glucose

  ঘ

  Amylase
• Wood is the main raw material for the manufacture of
  ক

  Paint

  খ

  Paper

  গ

  Ink

  ঘ

  Gun powder
• Which of the following is a protein?
  ক

  Natural rubber

  খ

  Starch

  গ

  Cellulose

  ঘ

  None of these
• According to Avogadro's Hypothesis, the smallest particle of an element or a compound, that can exist independently, is called:
  ক

  A molecule

  খ

  A cation

  গ

  An anion

  ঘ

  An atom
• 'No two electrons in an atom can have the same set of four quantum numbers' is stated in
  ক

  Newton's law

  খ

  Bohr's law

  গ

  Aufbau principle

  ঘ

  Pauli's exclusion principle
• In an atomic nucleus, neutrons and protons are held together by:
  ক

  Gravitational forces

  খ

  Exchange forces

  গ

  Coulombic forces

  ঘ

  Magnetic forces