Chemistry Practice Question and Answer
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Q: Which of the following is not oxidation?
1181 05f698ddb558d255013b2a71b
5f698ddb558d255013b2a71b- 1precipitationtrue
- 2Digestion of foodfalse
- 3Respirationfalse
- 4combustionfalse
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Answer : 1. "precipitation"
Q: Who was the inventor of positron?
1178 061655bfa7d6182610f5d706e
61655bfa7d6182610f5d706e- 1Chadwickfalse
- 2Andersontrue
- 3Rutherfordfalse
- 4J.J. Thomsonfalse
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Answer : 2. "Anderson "
Q: Who proposed the word 'molecule'?
1172 05f869f7ce5230d6207339745
5f869f7ce5230d6207339745- 1E. Rutherfordfalse
- 2J.J. Thomsonfalse
- 3Democritustrue
- 4John Doltonfalse
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Answer : 3. "Democritus"
Q: What will be the work done by 3 moles of an ideal gas when it expands spontaneously in vacuum?
1170 063c922461c47ef334be202d7
63c922461c47ef334be202d7- 1Zerotrue
- 2Infinitefalse
- 33 joulesfalse
- 49 joulesfalse
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Answer : 1. "Zero "
Q: Which acid is used in lemons?
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5ef2f33d7c1ec61320b147a2- 1Acetic acidfalse
- 2Nitric acidfalse
- 3Citric acidtrue
- 4All of the abovefalse
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Answer : 3. "Citric acid "
Q: Gas is produced by the reaction of steam on iron?
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612765e4b05363065a00aedf- 1Hydrogen gastrue
- 2Oxygen gasfalse
- 3ammonia gasfalse
- 4Nitrogen gasfalse
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Answer : 1. "Hydrogen gas"
Q: What type of reaction is corrosion?
1165 05f698e99473e9b04bc1fb350
5f698e99473e9b04bc1fb350- 1Reduction reactionfalse
- 2precipitation reactionfalse
- 3oxidation reactiontrue
- 4combination reactionfalse
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Answer : 3. "oxidation reaction"
Q: Which of the following properties does not show metals?
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5eeadf8e13d72d584fb2f4b0- 1Sound naturefalse
- 2Tensilefalse
- 3electrical conductivityfalse
- 4Mandatatrue
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Answer : 4. "Mandata"
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