Chemistry Practice Question and Answer
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Q: What will be the work done by 3 moles of an ideal gas when it expands spontaneously in vacuum?
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63c922461c47ef334be202d7- 1Zerotrue
- 2Infinitefalse
- 33 joulesfalse
- 49 joulesfalse
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Answer : 1. "Zero "
Q: Which of the following is a non-metal?
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61275e1a302e8b067c99d237- 1Cobaltfalse
- 2Hydrogentrue
- 3ironfalse
- 4goldfalse
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Answer : 2. "Hydrogen"
Q: Which of the following is purified by Elevation method-
1300 05f72f3dea921aa16e68288a7
5f72f3dea921aa16e68288a7- 1Naphthalenetrue
- 2Etherfalse
- 3Benzoic acidfalse
- 4None of thesefalse
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Answer : 1. "Naphthalene"
Q: Which acid is in tamarind?
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5feb019d00e3f71b828c0ce7- 1Methanoic acidfalse
- 2Tartaric acidtrue
- 3lactic acidfalse
- 4Oxalic acidfalse
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Answer : 2. "Tartaric acid"
Q: What type of reaction is corrosion?
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5f698e99473e9b04bc1fb350- 1Reduction reactionfalse
- 2precipitation reactionfalse
- 3oxidation reactiontrue
- 4combination reactionfalse
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Answer : 3. "oxidation reaction"
Q: Which of the following is the strongest hydracid known?
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63c7c1e71c47ef334bdd967e- 1HCNfalse
- 2Hclo4true
- 3HCLfalse
- 4Hno3false
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Answer : 2. "Hclo4"
Q: Who was the inventor of positron?
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61655bfa7d6182610f5d706e- 1Chadwickfalse
- 2Andersontrue
- 3Rutherfordfalse
- 4J.J. Thomsonfalse
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Answer : 2. "Anderson "
Q: Alkali metal can
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5f437f8497c6dd29b38f2e3f- 1Be highly unstable at room temperaturefalse
- 2vaporize at room temperaturefalse
- 3easily lose electronstrue
- 4easily gain electronsfalse
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Answer : 3. "easily lose electrons "
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