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