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