General Science Practice Question and Answer
8 Q: Metals are electropositive elements because-
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63bd219c8f5b1f774c439c68- 1They themselves convert into cations by donating electrons to non-metals.true
- 2They convert themselves into cations by taking electrons from metals.false
- 3metal is reactivefalse
- 4All of the abovefalse
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Answer : 1. "They themselves convert into cations by donating electrons to non-metals."
Explanation :
Metals are electropositive elements because they tend to lose electrons easily. In chemical reactions, metals readily give away their outer electrons to form positive ions, making them good conductors of electricity and heat. This electron loss leads to the formation of cations, which contribute to the electropositive nature of metals.
Q: Which of the following is the smallest bird in the world?
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632c34d94ada076be664fd03- 1Finchfalse
- 2Diamond Firetailfalse
- 3Bee Hummingbirdtrue
- 4Robinfalse
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Answer : 3. "Bee Hummingbird"
Q: What does food provide for us?
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63c7aa778731ac33279abb8a- 1Energy and waterfalse
- 2Energy and organic materialtrue
- 3Energy and nitrogenfalse
- 4Only energyfalse
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Answer : 2. "Energy and organic material "
Q: Which of the following consists of the exchange part of the respiratory system?
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63c8d792bdbddb32fda020a6- 1From external nostrils up to the alveolifalse
- 2From external nostrils to terminal bronchiolesfalse
- 3From trachea to terminal bronchiolesfalse
- 4Alveoli and their ductstrue
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Answer : 4. "Alveoli and their ducts "
Q: An object is placed between two plane mirrors which are kept at 60° with each other. The number of images formed will be
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628b639a44265e01a97fdc35- 13false
- 24false
- 35true
- 47false
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Answer : 3. "5"
Q: The weight of our body is mostly made of?
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61d6cb0235bd1c6dbafc4dcb- 1From Watertrue
- 2Parts of Skinfalse
- 3From Bonesfalse
- 4Parts of Bodyfalse
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Answer : 1. "From Water"
Q: Which of the following represents a correct food chain?
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6189e70852f0e406ab83c9f3- 1Frog → eagle → insects → grass → snakefalse
- 2Grass → insects → frog → snake → eagletrue
- 3Grass→ frog → insects → eagle→ snakefalse
- 4Frog → snake → insects → grass → eaglefalse
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Answer : 2. "Grass → insects → frog → snake → eagle "
Q: In a typical plant cell the position of the nucleus is
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628643b53f7a1029b93c8bc1- 1Centralfalse
- 2Peripheraltrue
- 3Basalfalse
- 4anywhere.false
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