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