Chemistry Practice Question and Answer
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Q: What is the pH value of salts made from strong acids and weak bases?
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5f6990bb558d255013b2c2aa- 1more than 7false
- 2less than 7true
- 3Between 10 and 14false
- 4less than 14false
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Answer : 2. "less than 7"
Q: Which of the following is not oxidation?
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5f698ddb558d255013b2a71b- 1precipitationtrue
- 2Digestion of foodfalse
- 3Respirationfalse
- 4combustionfalse
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Answer : 1. "precipitation"
Q: Isotopes of an element do not have ______.
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5f571a03c1a5d57a183026b9- 1Same number of electronsfalse
- 2Same number of protonsfalse
- 3Same chemical propertiesfalse
- 4Same physical propertiestrue
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Answer : 4. "Same physical properties"
Q: Oxides commonly occur in metals?
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5eeae05113d72d584fb2f5c3- 1acidicfalse
- 2Effortlessfalse
- 3Amphotericfalse
- 4Alkalinetrue
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Answer : 4. "Alkaline"
Q: Oxygenation is a chemical reaction in which
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5f7458b14637db732832e936- 1The electron is discarded.false
- 2Oxygen is a combination.false
- 3The ratio of the positive group increases.false
- 4All of the abovetrue
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Answer : 4. "All of the above"
Q: There is abundant available metal in the crust?
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5eeb1454eee45c3b837b02d4- 1SIfalse
- 2FEfalse
- 3ALtrue
- 4CUfalse
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Answer : 3. "AL"
Q: Bronze is an alloy of –
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5f15567f4cff381d162659f7- 1Copper and zincfalse
- 2Copper and Leadfalse
- 3Copper and Tintrue
- 4Copper and Silverfalse
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Answer : 3. "Copper and Tin "
Q: What type of reaction is respiration?
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5f69905d397b1a52908c873a- 1exothermic reactiontrue
- 2combination reactionfalse
- 3oxidation-reduction reactionfalse
- 4two-decomposition reactionfalse
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Answer : 1. "exothermic reaction"
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