Chemistry GK Practice Question and Answer
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Q: Sodium chloride and water are formed by the reaction of sodium hydroxide and hydrochloric acid. What is this reaction?
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5f698f9a558d255013b2b659- 1neutralizationtrue
- 2Disintegrationfalse
- 3combinationfalse
- 4precipitationfalse
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Answer : 1. "neutralization"
Q: Which compound is formed when copper is burnt in air?
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612764bd93f02206607eefa2- 1copper hydroxidefalse
- 2copper hydridefalse
- 3Copper Oxidetrue
- 4nothingfalse
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Answer : 3. "Copper Oxide"
Q: Which of the following is not oxidized?
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5f69801f558d255013b26335- 1combustionfalse
- 2precipitationtrue
- 3Digestion of foodfalse
- 4Respirationfalse
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Answer : 2. "precipitation"
Q: Which of the following reactions always have pairs together?
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5f698f46558d255013b2b2b6- 1combination and dissolutionfalse
- 2precipitation and displacementfalse
- 3neutralization and displacementfalse
- 4Oxidation and degradationtrue
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Answer : 4. "Oxidation and degradation"
Q: Silver and copper heat?
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61275c9cdbe92e068b911a69- 1are the best driverstrue
- 2are less conductorsfalse
- 3are dielectricsfalse
- 4is the best conductorfalse
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Answer : 1. "are the best drivers"
Q: Which of the following are strongly acidic?
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5f697e6a397b1a52908c0aac- 1pH = 7false
- 2pH = 14false
- 3pH = 0true
- 4pH = 3false
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Answer : 3. "pH = 0"
Q: The litmus dye is purple in color, which is removed?
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5f697e9cf9079a64e3a51e91- 1Redfalse
- 2Lichentrue
- 3Cabbage Turmericfalse
- 4Petunia flowerfalse
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Answer : 2. "Lichen"
Q: Herbs- The decomposition of vegetables into compost is an example of which reaction?
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5f697a52f9079a64e3a50eab- 1endothermicfalse
- 2exothermictrue
- 3substitutionfalse
- 4Amphibianfalse
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Answer : 2. "exothermic"
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