Science Quiz Questions and Answers

Science Quiz Questions and Answers

Science Quiz Questions and Answers:-GK Questions and Answers on General Science have been compiled to boost the preparation for several competitive examinations and also enhance knowledge.

Science Quiz Questions and Answers

No.-1.  Who was the first pre-Socratic philosopher to suggest that matter could neither be created nor destroyed?

Answer: Parmenides.

No.-2.  Which quantum number gives the shape of the orbital?

Answer: Azimuthal quantum number.

No.-3.  What is ecosystem?

Answer: The entire living community and non-living factors of the environment together from the ecosystem.

No.-4.  In 1729 AD, Pieter Van Musschenbroek used the term ‘PHYSICS’ for the first time. What was the subject called so far?

Answer: Natural philosophy.

No.-5.  What is the maximum capacity of d-orbital?

Answer: 10 electrons.

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No.-6.  Which form of science dealing with the study of structural and cultural traits of human beings?

Answer: Anthropology.

No.-7.  Which Greek philosopher suggested that the material world was composed of four basic elements – air, water, fire and earth?

Answer: Empedocles.

No.-8.  What is the shape of s-orbital?

Answer: Spherical.

No.-9.  What are the two functional groups in an ecosystem?

Answer: Autotrophs and heterotrophs.

No.-10.  Who in 1231 was the first to describe the science of optics?

Answer: Robert Grosseteste.

No.-11.  What do you mean by Zeeman Effect?

Answer: Splitting of spectral lines by magnetic field.

No.-12.   Where does the primary photo chemical reaction occur in chloroplast?

Answer: Quantasome.

No.-13.  Who was burnt to death for suggesting that the sun might be an ordinary star?

Answer: Giordano Bruno.

No.-14. What is the shape of p-orbital?

Answer: Dumb-bell.

No.-15.  What is exobiology?

Answer: It is the study of life in outer space.

Science Quiz

No.-16.  Who in 1643 was the first person to create vacuum above the liquid?

Answer: Evangelista Torricelli.

No.-17.  Which series of hydrogen atomic spectrum lies in the visible region?

Answer: Balmer series.

No.-18.  What is the magnification of an electron microscope?

Answer: 100000.

No.-19.  Who in 1786 invented the gold leaf electro scope?

Answer: Abraham Bennet.

No.-20.   Who proposed elliptical orbits?

Answer: Sommerfeld.

No.-21.  Which is the monocarpic plant which shows gregarious flowering once in 48 years?

Answer: Bamboo.

No.-22.  Who encouraged Newton to write his idea for principia?

Answer: Edmund Halley.

No.-23.  How many atomic orbitals are known? What are they?

Answer: Four. S, p, d, and f.

No.-24.   Write an example of serendipity.

Answer: Discovery of penicillin by Fleming.

No.-25.  Who in 1808 discovered polarization of light and introduced the term ‘Polarization’?

Answer: Etienne-Louis Malus.

No.-26.  What is the maximum number of electrons that can be accommodated in an orbital?

Answer: 2.

No.-27. What do you mean by Hydroponics?

Answer: Plant growth in liquid culture medium.

No.-28.  The first scientist to apply scientific reasoning to cosmology was Rene Descartes. What was his theory called?

Answer: Vortex Theory.

No.-29.  How many orbitals present 5f subshell?

Answer: Seven.

No.-30.  What is the technique of separation of disrupted cell components?

Answer: Fractionation.

No.-31.  In which year did Otto Von Guericke demonstrate his famous Magdeburg experiment dealing vacuum?

Answer: 1672.

No.-32.  On which property of electrons does the electron microscope work?

Answer: Wave nature.

No.-33.  What is EM?

Answer: Electron microscope.

No.-34.  Who was the first to attack Newton’s Corpuscular theory of light?

Answer: Thomas Young.

No.-35.  The element with the minimum atomic number having 8 electrons in the outer most shell is what?

Answer: Neon.

Science Quiz Questions

No.-36.  Name two monocarpic plants which show gregarious flowering.

Answer: Bambusa tulda, Melocanna bambusoides.

No.-37.  Who was the first person to design models of flying machine?

Answer: Leonardo da Vinci.

No.-38. The s-orbital of the L shell is represented as what?

Answer: 2s.

No.-39.  Under what system, organisms are provided with scientific means?

Answer: Binomial nomenclature.

No.-40.   Who in 1749 developed a method for making an artificial magnet?

Answer: John canton.

No.-41.  What is the maximum number of electrons in principal energy level?

Answer: K-2, L-8, M-18, N-32.

No.-42. What is the name of that branch of Biology which devoted to identifying, naming and classifying organisms?

Answer: Taxonomy.

No.-43.  Hydrodynamica gave explanation of Bernoulli’s theorem in 1738. Who was the first to suggest this theorem?

Answer: Daniel Bernoulli.

No.-44.  What is the atomic number of the element which has 3 electrons in its M shell?

Answer: 13.

No.-45.  Who was the author of ‘Man’s place in nature’?

Answer: Huxley.

No­.-46.  Who invented Leyden jar?

Answer: Pieter Van Musschenbroek and Ewald Georg von Kleist.

No.-47.  Which atom has only one electron?

Answer: hydrogen.

No.-48.  Both living and the non-living are made of same elements and are governed by the similar physical laws. In which respect are they different?

Answer: Level organization.

No.- 49.  Which famous Danish physicist in 1675 measured the speed of light?

Answer: Romer.

No.-50.  The path of the electron according to Niels Bohr’s theory was called what?

Answer: Orbit shell.

No.-51.  Expand the TMV.

Answer: Tobacco Mosaic Virus.

No.-52.  What did Sir William Herschel discover in 1800?

Answer: Infra-red radiation.

Science Quiz Solved Question

No.-53.  How many electrons can be accommodated in the M shell?

Answer: 18.

No.-54.  What is DNA?

Answer: Deoxyribonucleic acid.

No.-55.  In which year did G.S. Ohm formulate Ohm’s law?

Answer: 1827.

No.-56.  An electron jumps in to the next lower orbit when loses what?

Answer: One quantum of energy.

No.-57.  What is Histology?

Answer: Histology is the study of tissues (Microscopic anatomy).

No.-58.  In which year did A. Michelson and E. Morley conduct their experiment to verify the existence of ether?

Answer: 1887.

No.-59.  How many orbitals are there in p-subshell?

Answer: Three.

No.-60.  Which is the free living soil bacteria in fixes nitrogen?

Anatomy: Azotobacter.

No.-61.  Who in 1939 suggested the name meson for middle-weight particles?

Answer: Homi J. Bhabha.

No.-62.  The various orbitals of the same subshell will differ in what?

Answer: In their direction orientation.

No.-63.   What is Physiology?

Answer: Physiology is the study of structure and functions.

No.-64.  What is the importance of 2nd December 1942?

Answer: The creation of the first controlled chain reaction.

No.-65.  Electron is looked upon as a cloud of negative charge according to what?

Answer: Wave-mechanics theory.

No.-66.  What is Cell Biology?

Answer: Cell Biology is the study of structure and reproduction of cells.

No.-67.  Which philosopher conjectured that if the moon did not move, it would fall upon the earth?

Answer: Anaxagoras.

No.-68.  The subshell consisting of dumb-bell shaped orbitals is known as what?

Answer: P-subshell.

No.-69.  What do you mean by Genetics?

Answer: Genetics is the study of heredity and variations.

No.-70.  Who said, “A bird is an instrument working according to the mathematical laws”?

Answer: Leonardo da Vinci.

Science GK Questions

No.-71.  The region of space around the nucleus where there is a high probability of finding an electron is called what?

Answer: Orbital.

No.-72.  Write a Radio isotope.

Answer: I-131.

No.-73.  Who said, “All falling bodies, irrespective of their size, descend at the same speed”?

Answer: Galileo Galilei.

No.-74.  The major shell-wise electronic configuration of element with the atomic number 15 is what?

Answer: 2, 8, 5.

No.-75.   How does the living and non-living resemble up to the level organization?

Answer: Molecules and compounds.

No.-76.  Which Austrian physicist developed the philosophy that all knowledge is simply sensation?

Answer: Ernest Mach.

No.-77.  Who put forward the principle of uncertainty?

Answer: Werner Heisenberg.

No.-78.  What number of chemicals are present in a cell?

Answer: About 5000.

No.-79.  Who contemplated “A freely floating magnet orients itself in the north-south direction?

Answer: Robert Norman.

No.-80.  When electron leaves an orbital and jumps in to another?

Answer: When its energy changes.

No.-81.  Write an example of homeostasis.

Answer: Increased heart beat on running and sweating during exercise.

No.-82.  Who gave the idea “Electricity flows through space from heated metal”?

Answer: Thomas Alva Edison.

No.-83.  The electronic configuration of an atom is 2, 8, and 2. What is its atomic number?

Answer: 12.

No.-84.   Which is called blue-print of information?

Answer: DNA.

No.-85. “Moving particles have wave characteristics.” Who proposed the idea first?

Answer: Victor de Broglie.

No.-86.  What do you mean by orbitals?

Answer: They are regions of space around the nucleus where the probability of finding an electron is maximum.

No.-87.  Which cells are programmed to die during embryonic stage?

Answer: Vessel elements.

Science Quiz Question

No.-88.  Who suggested that light is made up of packets of energy known as protons?

Answer: Albert Einstein.

No.-89.  What are the integers used to express the energy, posit, etc. of an electron?

Answer: Quantum numbers.

No.-90.  Why virus cannot be cultured in totally artificial medium?

Answer: Because it lacks machinery to use genetic information.

No.-91.  Who first gave the concept of ‘Atom’?

Answer: Kanada.

No.-92.  The steady state from which no spontaneous change takes place is called what?

Answer: Equilibrium.

No.-93.  What are seedless plants called?

Answer: Cryptogams.

No.-94.  How many times is the proton heavier than the electron?

Answer: 1836 times.

No.-95.  What is the color of ammonium chloride?

Answer: White.

No.-96.  What is Dendrology?

Answer: The study of trees called Dendrology.

No.-97.   What is AMU?

Answer: It is the unit of atomic mass.

No.-98.  The chemical reactions which never go to completion are called what?

Answer: Reversible reactions.

No.-99.  Energy is converted from sunlight and released by what?

Answer: Respiration.

No.-100.  Which disease is spread in minute water drops?[CR][CR](Answer: two words.)

Answer: Legionnaire’s disease.

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