General Science Questions Practice Question and Answer
8Q: Isotopes are atoms of the same element that have different 1183 05b5cc5ffe4d2b4197774b43b
5b5cc5ffe4d2b4197774b43b- 1numbers of neutronstrue
- 2numbers of electronsfalse
- 3numbers of protonsfalse
- 4atomic numbersfalse
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Answer : 1. "numbers of neutrons"
Explanation :
Answer: A) numbers of neutrons Explanation: Isotopes are variations of an element that have the same charge as the original element, but a different mass, which is caused by either more/less neutrons in the nucleus.
Q: Which of the following metals is in a liquid state at orbital temperature?
1402 05db92494e7ff3d08a1c5f8d7
5db92494e7ff3d08a1c5f8d7- 1Mercurytrue
- 2Tungstenfalse
- 3Leadfalse
- 4Brominefalse
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Answer : 1. "Mercury"
Q: Which of the following is an air pollutant? 1156 05b5cc5ffe4d2b4197774b3ef
5b5cc5ffe4d2b4197774b3ef- 1Sulphur dioxidetrue
- 2Ozonefalse
- 3Water vapourfalse
- 4Nitric oxidefalse
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Answer : 1. "Sulphur dioxide"
Explanation :
Answer: A) Sulphur dioxide Explanation: Air pollutants are solid particles, gases, and liquid droplets in the air that can adversely affect ecosystems and the health of humans. Major ambient air pollutants include toxic metals, polycyclic aromatic hydrocarbons, benzene, particulate matter (PM), nitrogen oxides, sulfur oxides, carbon monoxide, and ozone. Power plants, factories, and vehicle and air traffic are the most important anthropogenic sources of air pollution. In addition, natural sources such as wildfires and volcanic activity contribute to ambient air pollution.
Q: Which of the following statements about water is false? 1691 05b5cc601e4d2b4197774b462
5b5cc601e4d2b4197774b462- 1There is extensive intramolecular hydrogen bonding in the condensed phase.true
- 2Water is oxidized to oxygen during photosynthesis.false
- 3Ice formed by heavy water sinks in normal water.false
- 4Water can act both as an acid and as a base.false
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Answer : 1. "There is extensive intramolecular hydrogen bonding in the condensed phase."
Explanation :
Answer: A) There is extensive intramolecular hydrogen bonding in the condensed phase. Explanation: Water possess intermolecular hydrogen bonding in the condensed phase. Hence, the given statement 'There is extensive intramolecular hydrogen bonding in the condensed phase.' about water is FALSE.
Q: Which of the following does not influence haemoglobin saturation? 1056 05b5cc695e4d2b4197774c4f1
5b5cc695e4d2b4197774c4f1- 1Nitric oxidetrue
- 2Carbon dioxidefalse
- 3Temperaturefalse
- 4DPGfalse
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Answer : 1. "Nitric oxide"
Explanation :
Answer: A) Nitric oxide Explanation:
Q: Who is regarded as father of modern chemistry ? 1463 05c2dbb7eaea81766da94cac5
5c2dbb7eaea81766da94cac5- 1Ruterfordfalse
- 2Einsteinfalse
- 3Lavoisiertrue
- 4C V Ramanfalse
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Answer : 3. "Lavoisier"
Q: Galvanised iron sheets have a coating of
1086 15d777a30315eb75b1463e6a7
5d777a30315eb75b1463e6a7- 1leadfalse
- 2chromiumfalse
- 3zinctrue
- 4tinfalse
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Answer : 3. "zinc"
Q: Plant which does not bear flower but have seed–
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5db957e833aa9436e0e3e8ef- 1Orchidesfalse
- 2Gymnopermtrue
- 3Angiospermfalse
- 4Crytogamusfalse
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