Basic Science Practice Question and Answer
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Q: The level of sound during normal conversation is
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5feafe33f6205c4d625cf626- 120 dbfalse
- 240 dbfalse
- 360 dbtrue
- 480 dbfalse
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Answer : 3. "60 db"
Q: Dry ice is solid.
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5fc9d3a4b3b23538af75d0a0- 1Carbon monoxidefalse
- 2Carbon dioxidetrue
- 3Sulfur dioxidefalse
- 4Hydrogen peroxidefalse
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Answer : 2. "Carbon dioxide"
Q: The food substances which get oxidised easily can be kept for longer duration by adding
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5ff5936c9fc6f75b3f623f0b- 1oxygen and keeping them in sun for few daysfalse
- 2nitrogen and keeping them in sun for few daysfalse
- 3oxygen and keeping them in airtight containersfalse
- 4nitrogen and keeping them in airtight containerstrue
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Answer : 4. "nitrogen and keeping them in airtight containers"
Q: Which of the following acids is used in car batteries?
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5ee99605109b5d6e01623341- 1Nitric acidfalse
- 2Hydrochloric acidfalse
- 3Sulphuric acidtrue
- 4Hydrofloric acidfalse
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Answer : 3. "Sulphuric acid"
Q: Rust on iron?
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5f9101807793eb35d72c610c- 1ferric oxidefalse
- 2Hydrated ferrous and ferric oxidefalse
- 3Alkali ferrous and ferric carbonatefalse
- 4Because of all of the abovetrue
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Answer : 4. "Because of all of the above"
Q: Basic scientific principle behind a nuclear reactor is
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602f519fddf4356d773d28aa- 1Nuclear fusionfalse
- 2Controlled nuclear fusionfalse
- 3Uncontrolled nuclear fissionfalse
- 4Controlled nuclear fissiontrue
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Answer : 4. "Controlled nuclear fission"
Q: Speed of sound is maximum?
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601406bc5beea84b8ecef91c- 1in airfalse
- 2In waterfalse
- 3in vacuumfalse
- 4Steeltrue
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Answer : 4. "Steel"
Q: Which of the following nutrients do NOT provide energy for animals?
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5ee8894a79b5ea388bed44fc- 1Fatsfalse
- 2Carbohydratesfalse
- 3Mineralstrue
- 4Proteinsfalse
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Answer : 3. "Minerals"
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