Alcohols, Phenols & Ethers PYQs Set 13 (PDF)

Set 13 of 14 · Questions 361-390 of 396

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Mere Teacher · Previous Year Questions NEET Chemistry · Alcohols, Phenols & Ethers · Set 13 (Q361-390)
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361. $The product formed in the given reaction is$ (1) (2) (3) (4) 362. $Identify the products [A] and [B], respectively in the following reaction:$ (1) (2) (3) (4) 363. $tert-butyl methyl ether on treatment with hydrogen iodide in cold gives$ (1) $tert-butyl iodide and methyl iodide$ (2) $tert-butyl alcohol and methyl alcohol$ (3) $tert-butyl alcohol and methyl iodide$ (4) $tert-butyl iodide and methyl alcohol$ 364. $In Kolbe's reaction the reacting substances are$ (1) $sodium phenate and CCl_{4}$ (2) $phenol and CHCl_{3}$ (3) $sodium phenate and CO_{2}$ (4) $phenol and CCl_{4} .$ 365. $What are ' X' and ' Y' respectively in the following reactions?$ (1) (2) (3) (4) 366. $Phenol treated with chloroform in presence of sodium hydroxide, which further hydrolysed in presence of an acid results$ (1) $Salicyclic acid$ (2) $Benzene-1,2-diol$ (3) $Benzene-1, 3-diol$ (4) $2-Hydroxybenzaldehyde$ 367. $Benzene is treated with oleum to produce compound (X) which when further heated with molten sodium hydroxide followed by acidification produces compound (Y) . The compound Y is treated with zinc metal to produce compound (Z) . Identify the structure of compound (Z) from the following option.$ (1) (2) (3) (4) 368. $Which is the final product (major) 'A' in the given reaction? HCl ‘A’ (Major Product)$ (1) (2) (3) (4) 369. $Which among the following is obtained as a product when phenol is treated with NaOH and CO_{2} followed by acid hydrolysis?$ (1) $Salicylaldehyde$ (2) $Salicylic acid$ (3) $Phthalic acid$ (4) $Benzoic acid$ 370. $Consider the above reaction sequence, the Product 'C is$ (1) (2) (3) (4) 371. $Which of the following derivatives of alcohols is unstable in an aqueous base?$ (1) (2) $RO - CMe_{3}$ (3) (4) 372. $When neopentyl alcohol is heated with an acid, it slowly converted into an 85 : 15 mixture of alkenes A and B, respectively. What are these alkenes?$ (1) (2) (3) (4) 373. $Consider the given reaction, identify the major product P . CH_{3} - COOH (i) LiAlH_{4} (ii) PCC (iii) HCN / O H (iv) H_{2} O / O H, Δ "P"$ (1) $C H_{3} - C H_{2} - C (= O) - N H_{2}$ (2) $C H_{3} - C H_{2} - C H_{2} - O H$ (3) $C H_{3} - C (O H) - C H_{2} C H_{3}$ (4) $C H_{3} - C (= O) - N H_{2}$ 374. $The steps involved in the conversion of propan-2-ol to propan-1-ol are in the order$ (1) $heating with PCl_{5}, heating with alc. KOH, acid catalysed addition of water$ (2) $heating with PCl_{5}, heating with alc. KOH, hydroboration oxidation$ (3) $dehydration, addition of HBr in presence of peroxide, heating with alc. KOH$ (4) $dehydration, addition of HBr, heating with aq. KOH$ 375. $Consider the following reaction and identify the product (P) . [NEET 2023]$ (1) $CH_{3} CH = CH - CH_{3}$ (2) $C H_{3} - C H (C H_{3}) - C H (B r) - C H_{3}$ (3) $C H_{3} - C (C H_{3})_{2} - C H_{2} B r$ (4) $C H_{3} - C (B r) (C H_{3}) - C H_{2} - C H_{3}$ 376. $Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Synthesis of ethyl phenyl ether may be achieved by Williamson synthesis. Reason (R): Reaction of bromobenzene with sodium ethoxide yields ethyl phenyl ether. choose the most appropriate answer from the options given below:$ (1) $Both (A) and (R) are correct and (R) is the correct explanation of (A)$ (2) $(A) is correct but (R) is not correct$ (3) $(A) is not correct but (R) is correct$ (4) $Both (R) and (R) are correct but (R) is NOT the correct explanation of (A)$ 377. $Lucas reagent is$ (1) $conc. H C l and anhydrous Z n C l_{2}$ (2) $conc. H N O_{3} and hydrous Z n C l_{2}$ (3) $conc. H C l and hydrous Z n C l_{2}$ (4) $conc. H N O_{3} and anhydrous Z n C l_{2} .$ 378. $Consider the following reaction sequence Compound (x) (76.6 % C, 6.38 % H, Vapour density 47) (i) CO_{2}, NaOH, 120^{\circ} C, high pressure (ii) H_{3} O^{+} Compound (y) (Major Product) Compound (y) develops characteristic colour with neutral FeCl_{3} solution. Identify the INCORRECT statement from the following for the above sequence.$ (1) $Compound y will dissolve in NaHCO_{3} and evolve a gas.$ (2) $Both compounds x and y will dissolve in NaOH .$ (3) $Both compounds x and y will burn with sooty flame.$ (4) $Compound x is more acidic than compound y .$ 379. $The major is$ (1) $C H_{3} - C (O H) (P h) - C H_{2} - C H_{2} - C H_{3}$ (2) $C H_{3} - C (O H) (P h) - C H_{2} - C H_{2} - C H_{2} B r$ (3) (4) $C H_{3} - C (= O) - C H_{2} - C H_{2} - C H_{2} - P h$ 380. $Phenol on oxidation in air gives$ (1) $quinone$ (2) $catechol$ (3) $resorcinol$ (4) $o -cresol$ 381. $In the reaction: Ethanol PCl_{5} X alc. KOH Y H_{2} SO_{4}, Room temp. H_{2} O, Δ Z the product Z is.$ (1) $C_{2} H_{4}$ (2) $CH_{3} CH_{2} OCH_{2} CH_{3}$ (3) $CH_{3} CH_{2} OSO_{3} H$ (4) $OH$ 382. $In set of reactions, identify D .$ (1) (2) (3) (4) 383. $Catechol and m-cresol respectively are$ (1) $Benzene - 1, 4 - diol; 3 - Methoxy phenol$ (2) $Benzene - 1,2-diol; 3 - Methoxy phenol$ (3) $Benzene - 1,3 - diol; 3 - Methyl phenol$ (4) $Benzene - 1,2-diol; 3 - Methyl phenol$ 384. $A, B and C respectively are$ (1) $ethanol, ethane nitrile and ethyne$ (2) $ethane nitrile, ethanol and ethyne$ (3) $ethyne, ethanol and ethane nitrile$ (4) $ethyne, ethane nitrile and ethanol.$ 385. $C_{6} H_{5} COOH 1. NH_{3} 2 Δ P NaOBr Q 1. Conc. H_{2} SO_{4} 2. heat to 460 K R$ (1) $o-bromosulphanilic acid$ (2) $sulphanilamide$ (3) $sulphanilic acid$ (4) $promosulphanilamide.$ 386. $Methanol is industrially prepared by$ (1) $oxidation of C H_{4} by steam at 90 0^{o} C$ (2) $reduction of HCHO using L i A I H_{4}$ (3) $reaction of HCHO with a solution of NaOH$ (4) $reduction of C O using H_{2} and Z n O - C r_{2} O_{3}$ 387. $Y in the above reaction is$ (1) $salicylaldehyde$ (2) $aspirin$ (3) $cumene$ (4) $picric acid.$ 388. $On ozonolysis gives$ (1) (2) (3) (4) $None of these$ 389. $The product P is$ (1) (2) (3) (4) 390. $Y is$ (1) (2) (3) (4)