Chemistry Practice Question and Answer
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Q: Water gas is the mixture of
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5ed8add854f88e519fa1b8c9- 1carbon dioxide and hydrogenfalse
- 2carbon monoxide and hydrogentrue
- 3carbon dioxide and nitrogenfalse
- 4carbon monoxide and nitrogen bearfalse
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Answer : 2. "carbon monoxide and hydrogen "
Q: Which gas accumulates at the anode after electromagnetic decomposition of alumina?
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5feb077f00e3f71b828c2c39- 1Hydrogen gasfalse
- 2nitrogen gasfalse
- 3Carbon dioxide gasfalse
- 4oxygen gastrue
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Answer : 4. "oxygen gas"
Q: is silica?
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61276505b05363065a00aaf5- 1metalloidstrue
- 2metalfalse
- 3non-metalsfalse
- 4none of thesefalse
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Answer : 1. "metalloids"
Q: The basis of classification of elements in modern periodic table is based on___.
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5f8fcca5c380c466d4dcef2c- 1Atomic numbertrue
- 2Atomic massfalse
- 3Atomic volumefalse
- 4Atomic densityfalse
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Answer : 1. "Atomic number "
Q: Which is the first metal used by humans?
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5eeb13ffad25df5a63256bd3- 1Goldfalse
- 2Ironfalse
- 3Coppertrue
- 4Silverfalse
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Answer : 3. "Copper"
Q: Which of the following metals burns with a golden flame?
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5eeadfdceee45c3b837a2c8f- 1Znfalse
- 2Kfalse
- 3Mgfalse
- 4Natrue
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Answer : 4. "Na"
Q: The anode in a dry cell consists of
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5f2cf8de21de6a117aefee33- 1Cadmiumfalse
- 2Graphitefalse
- 3Copperfalse
- 4Zinctrue
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Answer : 4. "Zinc "
Q: What is Neela Thoth?
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5f745654f66ef56de842b023- 1Copper sulphatetrue
- 2Calcium sulfatefalse
- 3Iron sulfatefalse
- 4sodium sulfatefalse
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Answer : 1. "Copper sulphate"
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