Chemistry GK Practice Question and Answer
8 Q: Hydrogen resembles the properties of which two groups of the periodic table?
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64a2b0fac7d7c7e0674a2640- 1Group 2 and Group 17false
- 2Group 1 and Group 3false
- 3Group 1 and Group 17true
- 4Group 2 and Group 4false
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Answer : 3. "Group 1 and Group 17"
Explanation :
1. Hydrogen matches the properties of the first group and seventh group of the periodic table.
2. Following is some additional information about the properties of hydrogen.
- Hydrogen is a highly flammable gas.
-Hydrogen is a major component of water.
- Hydrogen can be used as fuel.
Hydrogen is used in the chemical industry to make many types of products.
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 of the following drugs is used to treat indigestion?
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5f697fd0397b1a52908c1074- 1Antacidtrue
- 2Antibioticfalse
- 3Analgesicfalse
- 4Antisepticfalse
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Answer : 1. "Antacid"
Q: What type of chemical reaction is combustion of natural gas?
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5f6979af558d255013b234b3- 1combination reactionfalse
- 2decomposition reactionfalse
- 3exothermic reactiontrue
- 4dissolution reactionfalse
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Answer : 3. "exothermic reaction"
Q: What do you call the drugs that bind to the receptor site and inhibit its natural function?
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649a98d3c7d7c7e0672b7673- 1Antidepressantsfalse
- 2Agonistfalse
- 3Antagoniststrue
- 4Depressantsfalse
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Answer : 3. "Antagonists"
Explanation :
1. Name: Antagonist
2. Mechanism of action: By binding to the surface of the receptor, they cause opposition to the natural function.
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: Is it an ore of zinc?
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6127594bdbe92e068b90f4f2- 1Zinc Bladetrue
- 2Bauxitefalse
- 3sodium chloridefalse
- 4Sinawarfalse
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Answer : 1. "Zinc Blade"
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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