General Science Questions Practice Question and Answer
8 4 Q:
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5edefa608c4c964f73d37fc0 Answer : 3. "3.5%"
Q: Galvanised iron sheets have a coating of
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5d777a30315eb75b1463e6a7- 1leadfalse
- 2chromiumfalse
- 3zinctrue
- 4tinfalse
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Answer : 3. "zinc"
Q: ___ elements have the largest atoms.
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5dba6d2ea263e63785754ab4- 1Ffalse
- 2Ofalse
- 3Hfalse
- 4Litrue
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Answer : 4. "Li"
Q: What happens when a chemical bond is formed ?
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5de48d1d848f4a29cf45ae13- 1Energy is always absorbedtrue
- 2Energy in always releasedfalse
- 3More energy is released than is absorbedfalse
- 4Energy is neither released nor absorbedfalse
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Answer : 1. "Energy is always absorbed "
Q: Acid rain is mainly a mixture of—
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5de4921f80801d48fb7e6f96- 1Sulphuric acid and nitric acidtrue
- 2Hexane and methanefalse
- 3Acetic acid and brominefalse
- 4Ascorbic acid and citric acidfalse
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Answer : 1. "Sulphuric acid and nitric acid"
Q: What are the units of electrical conductivity?
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6024f177083f2c6596c16ae6- 1Minutesfalse
- 2Dimensionfalse
- 3Speedfalse
- 4Mahotrue
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Answer : 4. "Maho"
Q: Literal meaning of the term " Home sapiens " is
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5e81fefe1425f51f3ace032f- 1Man - The Wisetrue
- 2Man - The supremefalse
- 3Man - the omnivorefalse
- 4Man - the foolfalse
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Answer : 1. "Man - The Wise "
Q: The ozone layer in the atmosphere is at a height of about
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5db928d8889f1c0878bb001b- 125 kmfalse
- 250 kmtrue
- 3100 kmfalse
- 4200 kmfalse
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Answer : 2. "50 km"
Q: The average salinity of sea water is
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5edefa608c4c964f73d37fc0- 12%false
- 23%false
- 33.5%true
- 42.5%false
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Answer : 3. "3.5%"
Explanation :
The average salinity of sea water is 3.5% or 35 parts per thousand. In other words, for every 1 litre of sea water there is 35 grams of dissolved salts (NaCl) .
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