Chemistry Questions Practice Question and Answer
8 Q: Which of the following products are formed during anaerobic respiration in yeast?
568 06576edf47274ac7b5885d375
6576edf47274ac7b5885d375- 1Acetic acid + energyfalse
- 2Lactic acid + carbon dioxide + energyfalse
- 3Ethanol + carbon dioxide + energytrue
- 4Lactic acid + energyfalse
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Answer : 3. "Ethanol + carbon dioxide + energy"
Explanation :
1. Yeast breaks down glucose, producing ethanol and carbon dioxide and energy.
2. Yeast reacts anaerobically.
Q: What do you call the type of drugs that mimic the natural messenger by switching on the receptor?
939 064c390a7d3a6d4481ef1e4a3
64c390a7d3a6d4481ef1e4a3- 1Antidepressantsfalse
- 2Depressantsfalse
- 3Agonisttrue
- 4Antagonistsfalse
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Answer : 3. "Agonist"
Q: In 1931, who recognised that an aromatic compound must have an odd number of pairs of electrons, which can mathematically be written as 4n+2 (n = 0,1,2,3 etc.)?
665 0647de965e72c4684a1dcb8b3
647de965e72c4684a1dcb8b3- 1Jacob Berzeliusfalse
- 2Erich Huckeltrue
- 3Antoine Lavoisierfalse
- 4Auguste Laurentfalse
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Answer : 2. "Erich Huckel"
Q: Find the temperature at which the below reaction will be in equilibrium if the enthalpy and entropy change for the reaction is 30 Kj mol-1 and 105 J K-1 mol-1 respectively
Br2(l) + Cl2(g) → 2BrCl(g)
774 063c922a87efeed32fc213a76
63c922a87efeed32fc213a76Br2(l) + Cl2(g) → 2BrCl(g)
- 1273 Kfalse
- 2300 Kfalse
- 3450 Kfalse
- 4285.7 Ktrue
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Answer : 4. "285.7 K"
Q: Which of the following is the strongest hydracid known?
848 063c7c1e71c47ef334bdd967e
63c7c1e71c47ef334bdd967e- 1HCNfalse
- 2Hclo4true
- 3HCLfalse
- 4Hno3false
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Answer : 2. "Hclo4"
Q: A strong acid has a ______________
688 063c7b6411e8e3f3e1a35cf4b
63c7b6411e8e3f3e1a35cf4b- 1Weak conjugate acidfalse
- 2Weak conjugate basetrue
- 3Strong conjugate basefalse
- 4Strong conjugate acidfalse
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Answer : 2. "Weak conjugate base"
Q:Read the following questions carefully and answer them.
The isotope of Uranium used in atomic reactors is
699 063aaabe3e541fa7a01223f5f
63aaabe3e541fa7a01223f5f- 1true
- 2false
- 3false
- 4false
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Answer : 1. " "
Q: The helical structure of protein is stabilized by
682 0638de03d34f83f14728dfb2f
638de03d34f83f14728dfb2f- 1Depeptide bondsfalse
- 2Hydrogen bondstrue
- 3Ester bondsfalse
- 4Peptide bondsfalse
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