Basic Science Practice Question and Answer
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Q: Which acid is also known as the king of the acids?
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5f75666d4637db73283bcd48- 1Hydrochloric acidsfalse
- 2Citric Acidsfalse
- 3Sulphuric Acidstrue
- 4Acetic acidsfalse
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Answer : 3. "Sulphuric Acids"
Q: Which gas is used to purify pond water in cities?
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601401905beea84b8ecebc42- 1Sulfur dioxidefalse
- 2Chlorinetrue
- 3Nitrogenfalse
- 4Ammoniafalse
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Answer : 2. "Chlorine"
Q: Mac number is related
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601404975beea84b8ececf1c- 1At the speed of soundfalse
- 2At the speed of the shipfalse
- 3At the speed of the planetrue
- 4At the speed of the spacecraftfalse
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Answer : 3. "At the speed of the plane"
Q: Solder wire is made?
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5ef415d2bea49d16b47d3a44- 1Land and tintrue
- 2Zinc and copperfalse
- 3copper and leadfalse
- 4None of thesefalse
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Answer : 1. "Land and tin"
Q: Which of the following is not an area of coral reef?
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5f60486909624c19c5c1392d- 1Gulf of Mannarfalse
- 2Gulf of Cambaytrue
- 3Lakshadweepfalse
- 4Andaman and Nicobar Islandsfalse
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Answer : 2. "Gulf of Cambay"
Q: Which of the following elements forms strong alkaline oxides when ignited in oxygen?
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5f912ca1c011be03879fe3db- 1Phosphorusfalse
- 2sodiumtrue
- 3Ironfalse
- 4Sulfurfalse
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Answer : 2. "sodium"
Q: What species are found abundantly in ecotone, what is called?
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5f6052b32eed863f3a808024- 1Edge speciestrue
- 2Keystone speciesfalse
- 3Endemic speciesfalse
- 4Foster speciesfalse
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Answer : 1. "Edge species"
Q: Maximum density of water is-
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5f746665bb26e87e5eea9b4f- 10°Cfalse
- 2100°Cfalse
- 325°Cfalse
- 44°Ctrue
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Answer : 4. "4°C"
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