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science & technology Online Quiz - 183

Description: science & technology Online Quiz - 183
Number of Questions: 20
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Tags: science & technology
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Laws of Gravitation

  1. Sir Isaac Newton

  2. Sir J.J. Thompson

  3. Christian Barnard

  4. Michael Faraday


Correct Option: A

Laws of Heredity

  1. Sir Humphry Davy

  2. Gregor Mendel

  3. Hans Christian

  4. Sir Isaac Newton


Correct Option: B

Under whose supervision was the famous gold foil experiment conducted?

  1. J. J. Thomson

  2. Ernest Rutherford

  3. James Chadwick

  4. Lew Kowarski


Correct Option: B
  1. existence of nucleus at centre of atom

  2. existence of neutron

  3. existence of proton

  4. existence of electron


Correct Option: A

The chemical property of an element is mainly due to

  1. electrons

  2. nucleus

  3. valence electrons

  4. protons


Correct Option: C

Who discovered existence of Neutron?

  1. Ernest Rutherford

  2. Neils Bohr

  3. James Chadwick

  4. J. J. Thomson


Correct Option: C

The element with same atomic number but different mass number are together known as _.

  1. Isobars

  2. Isotones

  3. Isotopes

  4. Nuclear isomers


Correct Option: C
  1. Antoine Lavoisier

  2. John Newlands

  3. August Kekulé

  4. Dmitri Ivanovich Mendeleev


Correct Option: D

If we add aluminium atoms to silicon wafer, the resulting substance will be _.

  1. n-type semiconductor

  2. p-type semiconductor

  3. intrinsic semiconductor

  4. none of these


Correct Option: B

The only nonmetal which is liquid at room temperature is _.

  1. bromine

  2. mercury

  3. astatine

  4. iodine


Correct Option: A
  1. Amorphous triphosphate

  2. Adenosine triphosphate

  3. Aluminium triphosphate

  4. None of these


Correct Option: B

The by-product of the oxygenic photosynthesis reaction is _.

  1. Water

  2. Chlorophyll

  3. Carbon Di-Oxide

  4. Oxygen


Correct Option: D

The three most important reasons determining a persons blood alcohol content are body size, amount of alcohol consumed and rate of drinking

  1. True

  2. False


Correct Option: A

A man stands at a certain distance from cliff. He wants to measure the distance from where he is standing to the base of the cliff. He rings an alarm and he gets to know the distance. How?

  1. because he is brilliant

  2. his eye have a distance measuring machine.

  3. the cliff told him the distance.

  4. he mesured the time ECHO of sound took to return from cliff and then measured the distance.


Correct Option: D

name of the organic functional group (-co-)

  1. ketone

  2. acid

  3. ester

  4. ether


Correct Option: A
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