General Science Topics
Undergraduate level — General Science
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quiz Questions
Q31
The lightest gas is
Hydrogen
Watt
Newton
Joule
Explanation
Hydrogen is the lightest element and gas.
Q32
Ozone is an allotrope of
Watt
Newton
Oxygen
Joule
Explanation
Ozone is triatomic form of oxygen.
Q33
The hardest natural substance is
Watt
Newton
Joule
Diamond
Explanation
Diamond is hardest natural material on Mohs scale.
Q34
The most abundant gas in Earth atmosphere is
Watt
Newton
Joule
Nitrogen
Explanation
Nitrogen forms about 78 percent of atmosphere.
Q35
The nearest star to Earth is
Joule
Watt
Sun
Newton
Explanation
The Sun is the star closest to Earth.
Q36
The study of earthquakes is called
Seismology
Joule
Watt
Newton
Explanation
Seismology studies earthquakes and seismic waves.
Q37
Richter scale measures
Watt
Newton
Joule
Magnitude of earthquakes
Explanation
Richter scale expresses earthquake magnitude.
Q38
The gas used in fire extinguishers is commonly
Newton
Carbon dioxide
Watt
Joule
Explanation
CO2 extinguishers displace oxygen around flames.
Q39
Acid present in vinegar is
Acetic acid
Joule
Newton
Watt
Explanation
Vinegar contains dilute acetic acid.
Q40
Baking soda is chemically
Watt
Newton
Sodium bicarbonate
Joule
Explanation
Baking soda is NaHCO3.