General Knowledge
GENERAL SCIENCE MCQs
Total Questions : 67
| Page 6 of 7 pages
Answer: Option B. -> By decreasing solubility of Soap
Common salt help in separating soap from the solution after saponification by decreasing solubility of soap.
Common salt help in separating soap from the solution after saponification by decreasing solubility of soap.
Answer: Option B. -> Sand and silicates
Glass is made of the mixture of sand and silicates.
Glass is made of the mixture of sand and silicates.
Answer: Option C. -> Decibel
Noise or Noise pollution is measured in Decibel.
Noise or Noise pollution is measured in Decibel.
Answer: Option D. -> 21%
The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.
The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.
Answer: Option D. -> Ores
Ore is metal-bearing rock that can be mined, transported, processed, and sold at a profit. Although a broader definition includes nonmetallic rocks like rock salt and gypsum, most geologists classify these materials as industrial rocks and minerals.
Ore is metal-bearing rock that can be mined, transported, processed, and sold at a profit. Although a broader definition includes nonmetallic rocks like rock salt and gypsum, most geologists classify these materials as industrial rocks and minerals.
Answer: Option C. -> Kelvin
Absolute temperature is used in application of the ideal gas law and many other laws of thermodynamics. A scale for absolute temperature with degree units the same as on the Celsius scale is known as the Kelvin scale; the absolute temperature scale using Fahrenheit degree units is the Rankine scale.
Absolute temperature is used in application of the ideal gas law and many other laws of thermodynamics. A scale for absolute temperature with degree units the same as on the Celsius scale is known as the Kelvin scale; the absolute temperature scale using Fahrenheit degree units is the Rankine scale.
Answer: Option B. -> Ozone layer
The ozone layer protects the Earth against most UVB coming from the sun.
The ozone layer protects the Earth against most UVB coming from the sun.
Answer: Option A. -> Atomic number and electronic configuration.
Atoms of an element differ from those of all other elements in number of neutrons and electronic configuration.
Atoms of an element differ from those of all other elements in number of neutrons and electronic configuration.
Answer: Option C. -> Gamma rays
Gamma radiation is the most penetrating of the three radiations. It can easily penetrate body tissue.
Gamma radiation is the most penetrating of the three radiations. It can easily penetrate body tissue.
Answer: Option A. -> Neutron
Nuclear fission in fissile fuels is the result of the nuclear excitation energy produced when a fissile nucleus captures a neutron.
Nuclear fission in fissile fuels is the result of the nuclear excitation energy produced when a fissile nucleus captures a neutron.
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