Basic Science Practice Question and Answer
8 4 Q:
5f8fea683ca2d767b182a840 4 Q:
5f72eb0cc0afea20a179237c Answer : 4. "Lactic acid"
4 Q:
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606d79dadac3665e58aa61fa 4 Q:
607024ebdc80477c02cb6535 4 Q:
611b609bccbc2b477b6dbfa3 4 Q:
60827a7a5027727e2faa58ee 4 Q:
60fe5470f8986716bdf71b27
Q: Which of the following crops make the soil rich in nitrogen?
1248 05f8fea683ca2d767b182a840
5f8fea683ca2d767b182a840- 1Sunflowerfalse
- 2Sorghumfalse
- 3Peastrue
- 4Potatofalse
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Answer : 3. "Peas "
Q: Which of the following acids are formed during the formation of curd from milk?
1244 05f72eb0cc0afea20a179237c
5f72eb0cc0afea20a179237c- 1Acetic acidfalse
- 2Ascorbic acidfalse
- 3Citric acidfalse
- 4Lactic acidtrue
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Answer : 4. "Lactic acid"
Explanation :
As an end product, lactic acid is produced which makes the milk thicker and finally converts it into curd.
Q: Which chemical is used in making artificial rainfall?
1239 05f745ddda921aa16e68b9ec1
5f745ddda921aa16e68b9ec1- 1Sodium iodidefalse
- 2Silver bromidefalse
- 3Ethylene bromidefalse
- 4Silver iodidetrue
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Answer : 4. "Silver iodide"
Q: Who invented the bifocal glasses?
1237 0606d79dadac3665e58aa61fa
606d79dadac3665e58aa61fa- 1Thomas Alva Edisonfalse
- 2Benjamin franklintrue
- 3Evangelistafalse
- 4Isaac Newtonfalse
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Answer : 2. "Benjamin franklin"
Q: Which of the following is a nitrogen-fixing bacteria?
1237 0607024ebdc80477c02cb6535
607024ebdc80477c02cb6535- 1Salmonellafalse
- 2Rhizobiumtrue
- 3E.colifalse
- 4Pseudomonafalse
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Answer : 2. "Rhizobium "
Q: Which acid is used as a dehydrating agent?
1234 0611b609bccbc2b477b6dbfa3
611b609bccbc2b477b6dbfa3- 1hydrochloric acidfalse
- 2sulfuric acidtrue
- 3acetic acidfalse
- 4nitric acidfalse
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Answer : 2. "sulfuric acid"
Q: The work done is zero if there is no _____.
1231 060827a7a5027727e2faa58ee
60827a7a5027727e2faa58ee- 1Powerfalse
- 2Momentumfalse
- 3Velocityfalse
- 4Displacementtrue
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Answer : 4. "Displacement "
Q: What is the life span of WBC?
1231 060fe5470f8986716bdf71b27
60fe5470f8986716bdf71b27- 12-15 daystrue
- 23-15 daysfalse
- 34-15 daysfalse
- 45-20 daysfalse
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Answer : 1. "2-15 days"
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