GS Important Question : Physics, Chemistry, Biology | Quiz Test

Here we have created GS [General Science] Most important Question of Physics, Chemistry & Biology. This question bank is based on SSC CGL, Railway Group D, RRB NTPC, SSC CPO & SI. Given MCQ Question | Quiz | Online Test for Govt Exam.


Q. A galvanometer is used to ________ [Physice MCQ | Question]

  1. detect the direction of light
  2. detect the direction of current
  3. detect the direction of magnetic induction
  4. detect the direction of the sound


  • A Galvanometer is used to detect the direction of the current.
  • This device is used for detecting and measuring a small amount of electric current.
  • Johann Schweigger invented the device in 1820.


Q. Which of the following is not an example of Newton’s 3rd Law of Motion? [Physice MCQ | Question]

  1. Walking
  2. Gun Firing
  3. Rocket Launching
  4. Driving a Car


  • Driving a car is not an example of Newton’s 3rd Law of Motion.
  • The Newton’s 3rd Law of Motion states that for every action there is an equal and opposite reaction.
  • During Walking, we apply a force on the ground and the reaction force makes us move forward.
  • In Gun firing, When someone fires a gun a reaction force pushes him backward.
  • During Rocket Launching, The Rocket pushes the ground and the opposite force pushes it upward.


Q. Ceilometer is used to measure _________. [Physices MCQ | Question]

  1. Air pressure
  2. Electromagnetic Radiation
  3. Height of cloud base
  4. Specific Gravity of liquids


Instrument Uses
  • Used to measure Electromagnetic radiation.
  • Used to measure Air pressure.
  • Used to measure the height of the cloud base.
  • Used to measure the aerosol concentration within the atmosphere.
  • Used to measure the specific gravity of a liquid.





Q. FeO·FeO3 is the chemical formula of an iron ore called: [ Chemistry MCQ | Question]

  1. Magnetite
  2. Iron Pyrite
  3. Limonite
  4. Hematite 


FeO·Fe2O3 is the chemical formula of an iron ore called Magnetite.

Magnetite is black or brownish-black with a metallic luster, has a Mohs hardness of 5–6 and leaves a black streak. The chemical IUPAC name is iron(II,III) oxide and the common chemical name is ferrous-ferric oxide.



Q. Which of the following is an olfactory indicator?. [ Chemistry MCQ | Question]

  1. China rose petals
  2. Litmus
  3. Onion
  4. Turmeric


An Olfactory indicator is a substance whose smell varies depending on whether it is mixed with an acidic or basic solution. Olfactory indicators can be used in the laboratory to test whether a solution is a base or an acid, a process called olfactory titration. Onion, clove oil and vanilla extract are examples of olfactory indicators.


Q. Bamboo is a type of–            [ Biology  MCQ | Question]

  1. Algae
  2. Grass
  3. Bush
  4. Tree


Bamboo is a grass. A total of 24 species/lineages are found in India along with Gramineae or Poesy clans. The scientific name of bamboo is Bambusa arundinacea. 

[ Biology  MCQ | Question]

Q. Emphysema is a type of disorder which is caused due to environmental pollution and the human organ affected by it is–

  1. Liver
  2. Kidney
  3. Pulmonary
  4. Brain


Emphysema is a type of chronic obstructive pulmonary disease in which human lungs are affected.


Q. Which of the following is the perpetrator of Tapeworm? [ Biology  MCQ | Question]

  1. Rats
  2. Dog
  3. Pig
  4. Monkey


Plague is an infectious disease, which is spread by mice. Rabies or hydrophobia spread through the bite of a mad dog. Tapeworm – is spread by eating half cooked pig meat while polio is not from monkeys but spread by poliomyelitis virus.


__________ is a hormonal disorder. [ Biology  MCQ | Question]

  1. Goitre
  2. Diabetes
  3. Rickets
  4. Hemophilia


Diabetes is caused by hormonal disturbances, while hemophilia is a genetic disease. Rickets and goitre are caused by deficiency.


Q. ________ is concerned with cell division. [ Biology  MCQ | Question]

  1. Gibberellin
  2. Auxins
  3. Maleic hydrazide
  4. Cytokinin


  • Cytokinin is concerned with cell division.
  • It is a hormone that can be found in the region where rapid cell division occurs like plant roots, shoots and buds etc.
  • It helps in the production of new leaves, chloroplasts in leaves, lateral shoot growth etc.
  • It also affects apical dominance, axillary bud growth, and leaf senescence.


Q. Which of the following organs is mostly affected after observing fast for a longer period? [ Biology  MCQ | Question]

  1. Heart
  2. Kidney
  3. Lungs
  4. Intestine


Keeping fast for a long time has the greatest effect on the kidneys of the body.


Q. If any human disease spreads on a large area than it is known as? [ Biology  MCQ | Question]

  1. Pandemic
  2. Epidemic
  3. Endemic
  4. Epizootic


When a disease is permanently present in a particular area or population, such a condition is called endemic. When an infectious disease spreads rapidly in a large number of people in a certain population, such a condition is called epidemic. The expansion of the epidemic situation in the whole world is called pandemic.


Q. ________ is also known as “Pseudo force”. [ Physics  MCQ | Question]

  1. Centrifugal force
  2. Centripetal force
  3. Both of the above
  4. None of the above


  • The correct answer is Centrifugal force.
  • Centrifugal force is also known as pseudo force.
  • The cream separator work in this principle of centrifugal force.
  • Centripetal force: It is an external force always acts on the body to maintain the circular motion and it is a force towards the centre of the path.
  • Centrifugal force: It is equivalent and opposite to the centripetal force and it is the force produced as a result of centripetal force.


Q. Which of the following acids is used in making fertilizers?.  [ Chemistry MCQ | Question]

  1. Phosphoric acid
  2. Boric acid
  3. Picric acid
  4. Formic acid


Phosphorus is an essential plant nutrient and is taken up by plant roots, usually as the dihydrogen phosphate ion, H2PO4-, derived from phosphoric acid, H3PO4. About 90% of the phosphoric acid produced is used to make fertilizers.  It is mainly converted into three phosphate salts which are used as fertilizers.


Q. What of the following is used to detect tumors?  [ Chemistry MCQ | Question]

  1. Sodium–24
  2. Arsenic–74
  3. Iodine–131
  4. Cobalt–60


Element Use
Arsenic–74 detect tumors
Sodium–24 Blood clot
Iodine–131 Activity of thyroid gland
Cobalt–60 Treat of cancer




Q. Oncogene is related to– [ Biology  MCQ | Question]

  1. Tuberculosis
  2. Polio
  3. Cancer
  4. Typhoid


Oncogene is an abnormal gene responsible for cancer. It was first identified as SRC. Discovered in the year 1970. This component was a component of the cancer virus in chickens.


Q.________ is a branch of mechanics which deals with the study of the motion of the objects without taking into account the cause of their motion.

  1. Kinetics
  2. Optics
  3. Kinematics
  4. Fluid mechanics


Kinematics is a branch of physics and a subdivision of classical mechanics concerned with the geometrically possible motion of a body or system of bodies without consideration of the forces involved (i.e., causes and effects of the motions). 


Q. What is the CGS unit of force?. [ Physics  MCQ | Question]

  1. Galileo
  2. Barye
  3. Poise
  4. Dyne


Centimetre–gram–second is system of units. The CGS unit of force is the dyne which is defined as 1 g⋅cm/s2, so the SI unit of force, the newton (1 kg⋅m/s2), is equal to 100,000 dynes.


Q. Cotton is an example of which of the following polymers? [ Chemistry  MCQ | Question]

  1. Collagen
  2. Cellulose
  3. Starch
  4. Latex


Cellulose is one of the most abundant organic compounds found on the Earth and moreover, the purest form of natural cellulose is cotton. The paper manufactured from the wood of trees and also the supporting materials in leaves and plants mainly comprise of cellulose. Like amylose, it is also a polymer that is made from the monomers of glucose.


Q. Azurite is an ore of which of the following metals? [ Chemistry  MCQ | Question]

  1. Copper
  2. Silver
  3. Iron
  4. Mercury


Azurite is a copper carbonate hydroxide mineral with a chemical composition of Cu3(CO3)2(OH)2. It is best known for its characteristic deep blue to violet-blue color. The blue color, known as “azure,” is like the deep blue evening skies often seen above deserts and winter landscapes.


Q.What is the junction between a nerve cell and another cell called? [ Biology  MCQ | Question]

  1. Axon
  2. Synapse.
  3. Dendrite
  4. None of these


Synapse, also called neuronal junction, the site of transmission of electrical nerve impulses between two nerve cells (neurons) or between a neuron and a gland or muscle cell (effector). A synaptic connection between a neuron and a muscle cell is called a neuromuscular junction.


Q. A human being has a horizontal field of view of about _____ with one eye and of about ______ with both eyes.  [ Biology  MCQ | Question]

  1. 180°, 150°
  2. 150°, 180°
  3. 160°, 170°
  4. 180°, 360°


A human being has a horizontal field of view of about 150° with one eye and of about 180° with two eyes.