Chemistry Practice Question and Answer
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Q: In which of the following classifications are the elements arranged in the order of their increasing atomic number?
1327 060827cb45027727e2faa5d77
60827cb45027727e2faa5d77- 1The Modern Periodic Tabletrue
- 2Mendeleev's Periodic Table/false
- 3Newland's Law of Octavesfalse
- 4Dobereiner's Triadsfalse
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Answer : 1. "The Modern Periodic Table "
Q: The gas which is present in both the natural gas and the bio-gas is
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638ddfd634f83f14728de825- 1Methanetrue
- 2Butanefalse
- 3Hydrogenfalse
- 4Carbon Monoxidefalse
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Answer : 1. "Methane"
Q: Emulsion is a dispersion of ____.
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5fe9aca500e3f71b8285edb8- 1Gas in Gasfalse
- 2Solid in Solidfalse
- 3Liquid in Liquidtrue
- 4All of thesefalse
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Answer : 3. "Liquid in Liquid "
Q: Halogens are belonging to:
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608b80848899c91069d282ed- 1Group17true
- 2Group 8false
- 3Group 18false
- 4Group 7false
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Answer : 1. "Group17 "
Q: The common name of dichlorodifluoromethane is _____.
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62cd637951fe3472d6b30512- 1gypsumfalse
- 2boraxfalse
- 3galenafalse
- 4Freontrue
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Answer : 4. "Freon"
Q: Which of the following has low density and low melting point?
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6082915b38ab470ae93bd9be- 1Natrue
- 2Fefalse
- 3Cufalse
- 4Aufalse
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Answer : 1. "Na"
Q: Which of the following is a Lewis base?
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63c7b9de8731ac33279af243- 1Ammoniatrue
- 2Magnesium chloridefalse
- 3Aluminum chloridefalse
- 4Sodium ionfalse
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Answer : 1. "Ammonia"
Q: NaHCO3 is chemical formula for ___________.
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62de6d24313eb40eb89fc5a4- 1Boraxfalse
- 2Vinegarfalse
- 3Limefalse
- 4Baking sodatrue
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Answer : 4. "Baking soda"
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