Basic Science Practice Question and Answer
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Q: Solute can be separated from solution?
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611b60d6dc4e2547a1c9191e- 1filtrationfalse
- 2evaporationtrue
- 3Decantationfalse
- 4sedimentationfalse
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Answer : 2. "evaporation"
Q: Which substance is added to make natural rubber hard and bouncy?
1257 0611b6423dc4e2547a1c91bd7
611b6423dc4e2547a1c91bd7- 1Petrol Jellyfalse
- 2sulfuric acidfalse
- 3sulfurtrue
- 4Spongefalse
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Answer : 3. "sulfur"
Q: The chemical name of_______ is calcium sulphate hemihydrates.
1254 06082908f38ab470ae93bd0a4
6082908f38ab470ae93bd0a4- 1Baking powderfalse
- 2Gypsumfalse
- 3Baking sodafalse
- 4Plaster of Paristrue
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Answer : 4. "Plaster of Paris "
Q: The filament of an electric bulb is made up of
1250 05fc9cb5b5c47b65b5b2c1e98
5fc9cb5b5c47b65b5b2c1e98- 1Chromiumfalse
- 2Tungstentrue
- 3Copperfalse
- 4Zincfalse
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Answer : 2. "Tungsten"
Q: Transfer of pollen grains from anther to the stigma of a flower is called ___.
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6082788c60a06a7ffdaa97dd- 1Pollinationtrue
- 2Regenerationfalse
- 3Transpirationfalse
- 4Sexual reproductionfalse
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Answer : 1. "Pollination "
Q: What causes molybdenum deficiency?
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604de924e7f3ff5d8f6625b1- 1Whip tail in cauliflowertrue
- 2Hot disease in tomatofalse
- 3Lemon yellow yellow stain diseasefalse
- 4All thesefalse
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Answer : 1. "Whip tail in cauliflower"
Q: Which of the following electromagnetic waves has the highest wavelength?
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601405e0d039355294ee28fd- 1Ultraviolet raysfalse
- 2Sunlightfalse
- 3Gamma raysfalse
- 4infrared raystrue
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Answer : 4. "infrared rays"
Q: Which of the following gas is not present in the atmosphere?
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611b611714663c47a233f052- 1Nitrogenfalse
- 2Heliumfalse
- 3Chlorinetrue
- 4Kryptonfalse
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Answer : 3. "Chlorine"
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