-
- Oxalic acid
- Sulphuric and nitric acids
- Acetic acid
- Carbolic acid
Sciences MCQs
In an oil lamp, the oil rises up in the wick due to _____.
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- Viscosity of oil
- Change in temperature
- Capillary action
- Atmospheric pressure
Heating element of an electric heater is made up of _____.
-
- Nichrome
- Graphite
- Tungsten
- Chromium
The electron was first identified by _____.
-
- James Chadwick
- J. Kepler
- J.J. Thompson
- D. Rutherford
Which of the following pairs is incorrect?
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- Pasteur: Bacteriology
- Faraday: Diffusion of gasses
- Newton: Law of Gravitation
- Roentgen : X-Ray
Choose the correct combination.
-
- Evolution : Darwin
- typewriter: Remington
- Dynamite: Dunlop
- Aeroplan : Harvey
Mark the wrong combination.
-
- J.L Baird: Television
- A.G. Bell : Telephone
- J. Perkins : Darwin
- James Watt: Steam engine
Electron was first identified by _____.
-
- J. Kepler
- Daniel Rutherford
- J.J. Thomson
- James Chadwick
Who invented typewriter?
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- Sholes
- Waterman
- Pascal
- Shockley
Who among the following invented the steam engine?
-
- Wright Brother
- James Watt
- Thomas Savory
- Marconi