By babulal1988.com@gmail.com / 02/10/2025 0% 0 votes, 0 avg 16 Complete chemistry Chemistry Quiz Present time is the best time to initiate the tast 1 / 41 Category: chemistry 1. Which compound is used in the preparation of bakelite? a. Acetophenone b. Acetone c. Benzaldehyde d. Formaldehyde 2 / 41 Category: chemistry 2. Ethers are generally unreactive because: a. They have strong C–O bonds b. They lack acidic hydrogen c. They are non-polar d. Oxygen has lone pairs 3 / 41 Category: chemistry 3. Aldehydes are more reactive than ketones in nucleophilic addition reactions because: a. Ketones have H atom b. Ketones have lower boiling point c. Steric hindrance is less d. Aldehydes are less polar 4 / 41 Category: chemistry 4. The major product formed when phenol reacts with bromine water is: a. o-Bromophenol b. Bromobenzene c. p-Bromophenol d. 2,4,6-Tribromophenol 5 / 41 Category: chemistry 5. In Williamson ether synthesis, which alkyl halide is least suitable? a. Isopropyl bromide b. Ethyl bromide c. Methyl bromide d. tert-Butyl bromide 6 / 41 Category: chemistry 6. s–1 is the unit of rate constant for the zero order reaction. a. True b. False 7 / 41 Category: chemistry 7. F. Wohler synthesised an organic compound, urea from an inorganic compound. That is ....... a. None of the above b. Urea c. Uric acid d. Ammonia 8 / 41 Category: chemistry 8. Which of the following depends on temperature : a. Mole Fraction b. Weight percentage c. Molality d. Molarity 9 / 41 Category: chemistry 9. Which of the following alcohols shows maximum intermolecular hydrogen bonding? a. Glycerol b. Ethanol c. Propan-2-ol d. Methanol 10 / 41 Category: chemistry 10. What is the type of hybridisation of each carbon in the following compound? CH3CH=CHCN a. sp3, sp2 b. sp3, sp2, sp2, sp c. sp3, sp, d. sp3 11 / 41 Category: chemistry 11. Which reagent converts aldehydes into corresponding alcohols? a. Fehling’s solution b. Tollens’ reagent c. NaBH₄ d. KMnO₄ 12 / 41 Category: chemistry 12. The boiling point of aldehydes and ketones is higher than hydrocarbons because of: a. Dipole–dipole interaction b. Van der Waals forces c. Ionic bonding d. Hydrogen bonding 13 / 41 Category: chemistry 13. The increasing order of acidity is: a. Phenol < Water < Ethanol b. Ethanol < Water < Phenol c. Ethanol < Phenol < Water d. Water < Ethanol < Phenol 14 / 41 Category: chemistry 14. Cannizzaro reaction is shown by aldehydes which: a. Are aromatic b. Have α-hydrogen c. Are aliphatic d. Do not have α-hydrogen 15 / 41 Category: chemistry 15. Which one of the following is the strongest acid? (NEET 2019) a. Phenol b. Water c. Ethanol d. p-Nitrophenol 16 / 41 Category: chemistry 16. Anisole on nitration gives mainly: a. m-Nitroanisole b. Nitrobenzene c. p-Nitroanisole d. o-Nitroanisole 17 / 41 Category: chemistry 17. Which one is an ether? (NEET 2012) a. CH₃OCH₃ b. C₆H₅OH c. CH₃CH₂OH d. CH₃COOH 18 / 41 Category: chemistry 18. If the molarity of dilute solution is doubled, then the molal depression constant will be : a. unchanged b. double c. triple d. half 19 / 41 Category: chemistry 19. The functional group present in aldehydes is: a. –OH b. –CHO c. –CO– d. –COOH 20 / 41 Category: chemistry 20. Which reagent is used to distinguish between phenol and ethanol? a. Na metal b. HCl c. FeCl₃ d. NaOH 21 / 41 Category: chemistry 21. Aldehydes can be prepared by oxidation of: a. Primary alcohols b. Secondary alcohols c. Tertiary alcohols d. Phenols 22 / 41 Category: chemistry 22. Which of the following will NOT give ether on dehydration? a. Propanol b. Ethanol c. Methanol d. tert-Butyl alcohol 23 / 41 Category: chemistry 23. The molarity of a solution containing 5 g of NaOH in 450 mL solution is 0.278 mol dm–3. a. False b. True 24 / 41 Category: chemistry 24. Williamson ether synthesis is useful for preparing: a. Symmetrical ethers only b. Unsymmetrical ethers only c. Cyclic ethers only d. Both symmetrical and unsymmetrical ethers 25 / 41 Category: chemistry 25. Major product when phenol reacts with chloroform and NaOH followed by acidification is: a. Benzoic acid b. Benzaldehyde c. Salicylaldehyde d. Chlorobenzene 26 / 41 Category: chemistry 26. Which ether on reaction with excess HI gives two different alkyl iodides? a. Dimethyl ether b. Methyl ethyl ether c. Diphenyl ether d. Diethyl ether 27 / 41 Category: chemistry 27. Anisole undergoes bromination in the presence of FeBr₃ to give mainly: a. p-Bromoanisole b. Bromobenzene c. m-Bromoanisole d. o-Bromoanisole 28 / 41 Category: chemistry 28. Which of the following does not react with sodium metal?(NEET 2017) a. Diethyl ether b. Water c. Phenol d. Ethanol 29 / 41 Category: chemistry 29. 10 mL of a solution of NaOH is found to be completely neutralised by 8 mL of a given solution of HCl. If we take 20 mL of the same solution of NaOH, the amount HCl solution (the same solution as before) required to neutralise it will be a. 4 mL b. 16 mL c. 8 mL d. 12 mL 30 / 41 Category: chemistry 30. The mixture Which forms Azeotropic with highest boiling point will be : a. Water + Nitric acid b. Ethanol + Water c. Heptane + Octane d. Acetone + Carbon disulphide 31 / 41 Category: chemistry 31. For the given reaction 2A + B → C + D, the rate constant is 1.5 × 10–4 s –1. What is the order of the reaction? a. three b. zero c. two d. one 32 / 41 Category: chemistry 32. Which alcohol gives turbidity immediately with Lucas reagent? a. 2-Propanol b. Ethanol c. tert-Butyl alcohol d. 1-Propanol 33 / 41 Category: chemistry 33. Phenol is more acidic than ethanol because: a. Phenoxide ion is stabilized by resonance b. Phenol has higher molecular mass c. Ethoxide ion is stabilized by resonance d. Phenol forms hydrogen bonds 34 / 41 Category: chemistry 34. Tollens’ reagent is used to distinguish between: a. Aldehyde and ketone b. Aldehyde and ester c. Alcohol and aldehyde d. Ketone and acid 35 / 41 Category: chemistry 35. Which of the following does NOT give silver mirror test? a. Ethanal b. Formaldehyde c. Benzaldehyde d. Acetone 36 / 41 Category: chemistry 36. Which of the following is a ketone? a. Propanone b. Ethanal c. Benzaldehyde d. Methanal 37 / 41 Category: chemistry 37. Which compound gives a positive Fehling’s test? a. Acetone b. Acetophenone c. Benzaldehyde d. Formaldehyde 38 / 41 Category: chemistry 38. Williamson ether synthesis involves reaction between: (NEET 2016) a. Ether and alkyl halide b. Alcohol and alkyl halide c. Phenol and alkyl halide d. Sodium alkoxide and alkyl halide 39 / 41 Category: chemistry 39. 1.00 mol kg–1 (or 1.00 m) solution of KCl means that 1 mol (74.5 g) of KCl is dissolved in 1 kg of water. a. False b. True 40 / 41 Category: chemistry 40. Phenol on heating with zinc dust forms: (AIPMT 2013) a. Cyclohexanol b. Chlorobenzene c. Benzene d. Benzoic acid 41 / 41 Category: chemistry 41. L mol–1 s–1 is unit of rate constant for second order reaction. a. False b. True Your score isThe average score is 72% 0% Restart quiz
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