Chemistry General Knowledge Questions Practice Question and Answer
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Q: Which of the following is an organic compound with the formula C6H4Cl2 that is used as a fumigant insecticide to control cloth months?
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6441214c72ca731a9945cdd8- 1Paradichlorobenzenetrue
- 2Chlorobenzenefalse
- 3Benzoyl chloridefalse
- 4Ethylbenzenefalse
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Answer : 1. "Paradichlorobenzene"
Q: Which of the following is incorrect with reference to hypophysis?
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63c92589be373f6c954b8007- 1It lies a bony depression called sell turcicafalse
- 2Connected to hypothalamus through infundibulumfalse
- 3Anatomically divided into adeno-hypophysis and neurohypophysisfalse
- 4Neurohypophysis synthesizes ADH and OTtrue
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Answer : 4. "Neurohypophysis synthesizes ADH and OT"
Q: Electronic configuration of the outer shell of the element Gd with atomic number 64 is
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63c923ad1e8e3f3e1a3a6f02- 14f4 5df 6s1false
- 24f3 5df 6s2false
- 34f5 5d4 6s1false
- 44f7 5d1 6s2true
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Answer : 4. "4f7 5d1 6s2"
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: What is the function of a catalyst in a chemical reaction?
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63c921fdb338bc336f0ddb80- 1Decrease rate constant of reactionfalse
- 2Increases activation energy of reactionfalse
- 3Reduces enthalpy of reactionfalse
- 4Does not affect the equilibrium constant of reactiontrue
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Answer : 4. "Does not affect the equilibrium constant of reaction"
Q: Find the compound which undergoes nucleophilic substitution reaction exclusively by an SN1 mechanism
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63c921a2bdbddb32fda19117- 1Benzyl chloridetrue
- 2Chlorobenzenefalse
- 3Ethyl chloridefalse
- 4Isopropyl chloridefalse
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Answer : 1. "Benzyl chloride "
Q: Which of the following process is used to do maximum work done on the ideal gas if the gas is compressed to half of its initial volume?
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63c920deb338bc336f0dd8d6- 1Isothermalfalse
- 2Isochoricfalse
- 3Isobaricfalse
- 4Adiabatictrue
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Answer : 4. "Adiabatic"
Q: Why do we boil the extract with conc. HNO3 in Lassaigne’s test for halogens?
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63c8f9528731ac33279f0648- 1To increase the concentration of NO3- ionsfalse
- 2To increase the solubility product of AgClfalse
- 3It increases the precipitation of AgClfalse
- 4For the decomposition of Na2S AND NaCN formedtrue
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Answer : 4. "For the decomposition of Na2S AND NaCN formed"
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