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