Basic Science Practice Question and Answer
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Q: The work done is zero if there is no _____.
1335 060827a7a5027727e2faa58ee
60827a7a5027727e2faa58ee- 1Powerfalse
- 2Momentumfalse
- 3Velocityfalse
- 4Displacementtrue
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Answer : 4. "Displacement "
Q: Blood group was discovered by -
1333 0600aaf7f1187ab38691f5b09
600aaf7f1187ab38691f5b09- 1Karl Landsteinertrue
- 2Pavlovfalse
- 3Alexander Flemingfalse
- 4William Harveyfalse
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Answer : 1. "Karl Landsteiner "
Q: Which of the following is a nitrogen-fixing bacteria?
1333 0607024ebdc80477c02cb6535
607024ebdc80477c02cb6535- 1Salmonellafalse
- 2Rhizobiumtrue
- 3E.colifalse
- 4Pseudomonafalse
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Answer : 2. "Rhizobium "
Q: Litmus is isolated from-
1331 0608b8506cf70ad183597f8aa
608b8506cf70ad183597f8aa- 1Lichentrue
- 2Algaefalse
- 3Fungusfalse
- 4Bacteriafalse
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Answer : 1. "Lichen "
Q: Black soil color is black due to presence of abundant minerals?
1322 0604debf8a01bc447899e5e44
604debf8a01bc447899e5e44- 1Zincfalse
- 2Copperfalse
- 3Manganesetrue
- 4Aluminumfalse
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Answer : 3. "Manganese"
Q: Which among the following happens in an oxidation reaction?
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607936b6b52a047fdc46902d- 1Electrons are gainedfalse
- 2Electrons are losttrue
- 3Protons are gainedfalse
- 4Protons are lostfalse
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Answer : 2. "Electrons are lost "
Q: On heating potassium chlorate?
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611b615c14663c47a233f073- 1Nitrogen gas is releasedfalse
- 2Oxygen gas is releasedtrue
- 3Hydrogen gas is releasedfalse
- 4none of thesefalse
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Answer : 2. "Oxygen gas is released"
Q: Which elements are caused by different colors of firecrackers-
1320 05f8fcd993ca2d767b181dcbe
5f8fcd993ca2d767b181dcbe- 1Zinc and sulfurfalse
- 2Potassium and mercuryfalse
- 3Stranium and Bariumtrue
- 4Chromium and Nickelfalse
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Answer : 3. "Stranium and Barium "
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