Alcohols, Phenols & Ethers PYQs Set 12 (PDF)

Set 12 of 14 · Questions 331-360 of 396

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Mere Teacher · Previous Year Questions NEET Chemistry · Alcohols, Phenols & Ethers · Set 12 (Q331-360)
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331. $Which one of the following reactions is NOT possible?$ (1) (2) (3) (4) 332. $Propene, C H_{3} C H = C H_{2} can be converted into 1‐propanol by oxidation. Indicate which set of reagents amongst the following is ideal for the above conversion?$ (1) $K M n O_{4} (alkaline)$ (2) $Osmium tetroxide$ (3) $B_{2} H_{6} and a l k . H_{2} O_{2}$ (4) $O_{3} / Z n$ 333. $CH_{3} - CH_{2} - CH_{2} - Br + NaOH \to C 2 H 5 OH Product ’ A ’ Consider the above reactions, identify product B and product C .$ (1) $B = 1-Propanol C = 2 -Propanol$ (2) $B = C = 2 -Propanol$ (3) $B= 2-Propanol C = 1-Propanol$ (4) $B = C = 1-Propanol$ 334. $The intramolecular hydrogen bonding is present in$ (1) $phenol$ (2) $Benzoic acid$ (3) $para-Nitrophenol$ (4) $2-Hydroxybenzoic Acid$ 335. $Reaction of with R M g X leadsto the formation of$ (1) $R C H_{2} C H_{2} O H$ (2) $R C H O H C H_{3}$ (3) $RCHOHR$ (4) $(H_{3} C)_{2} C H - C H_{2} - O H$ 336. $Ethylene oxide when treated with Grignard reagent yields$ (1) $primary alcohol$ (2) $secondary alcohol$ (3) $tertiary alcohol$ (4) $cyclopropyl alcohol.$ 337. $The heating of phenyl methyl ether with HI produces an aromatic compound A which on treatment with conc. HNO_{3} gives B . A and B respectively are,$ (1) $methanol, ethanoic acid$ (2) $picric acid, phenol$ (3) $iodobenzene, 1-iodo-4-nitrobenzene$ (4) $phenol, picric acid.$ 338. $The products X and Z in the following sequence are$ (1) $iso-propyl benzene and acetone$ (2) $cumene peroxide and acetone$ (3) $iso-propyl benzene and iso-propyl alcohol$ (4) $phenol and acetone.$ 339. $Identify the major product formed from the following reaction sequence$ (1) (2) (3) (4) 340. $The compounds A and B in the following reaction are, respectively:$ (1) $A = Benzyl alcohol, B = Benzyl cyanide$ (2) $A = Benzyl chloride, B = Benzyl cyanide$ (3) $A = Benzyl alcohol, B = Benzyl isocyanide$ (4) $A = Benzyl chloride, B = Benzyl isocyanide$ 341. $In the following reaction, C6H5CH2Br 1. Mg Ether 2. H_{3} O^{+} X, the product 'X' is :$ (1) $C6H5CH2OCH2C6H5$ (2) $C6H5CH2OH$ (3) $C6H5CH3$ (4) $C6H5CH2CH2C6H5$ 342. $Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. H_{2} SO_{4} followed by treatment with NaOH?$ (1) (2) (3) (4) 343. $Which of the following compounds with molecular formula, C5H10 yields acetone on ozonolysis?$ (1) $2-methyl-2-butene$ (2) $3-methyl-1-butene$ (3) $Cyclopentane$ (4) $2-methyl-1-butene$ 344. $The major product in the given reaction is$ (1) (2) (3) (4) 345. $A compound 'X' is acidic and it is soluble in NaOH solution, but insoluble in N a H C O_{3} solution. Compound 'X' also gives violet colour with neutral F e C l_{3} solution. The compound 'X' is :$ (1) (2) (3) (4) 346. $Consider the above reaction sequence and identify the major product P .$ (1) $Methoxymethane$ (2) $Methanoic acid$ (3) $Methanal$ (4) $Methane$ 347. $Consider the above reaction, the major product 'P' is:$ (1) (2) (3) (4) 348. $When the vapours of tertiary butyl alcohol are passed through heated copper at 573 K, the product formed is$ (1) $but-2-ene$ (2) $2-butanone$ (3) $2-methyl propene$ (4) $butanal.$ 349. $Given below are two statements: Statement I : Piciric acid is 2,4,6 - trinitrotoluene. Statement II : Phenol - 2,4 - disulphonic acid is treated with Conc. HNO_{3} to get picric acid. In the light of the above statements, choose the most appropriate answer from the options given below :$ (1) $Statement I is incorrect but Statement II is correct$ (2) $Both Statement I and Statement II are incorrect$ (3) $Statement I is correct but Statement II is incorrect$ (4) $Both Statement I and Statement II are correct$ 350. $Which of the following is the major product, when p - cresol is treated with zinc dust?$ (1) $Toluene$ (2) $Heptane$ (3) $Methyl cyclohexanol$ (4) $Methyl cyclohexane$ 351. $Main Products formed during a reaction of 1 -methoxy naphthalene with hydroiodic acid are:$ (1) $and CH_{3} OH$ (2) $and CH_{3} I$ (3) $and CH_{3} OH$ (4) $and CH_{3} I$ 352. $Identify the major products and respectively in the following reaction of phenol :$ (1) (2) (3) (4) 353. $Phenol \to X forms a tribromo derivative. " X " is$ (1) $bromine in benzene$ (2) $bromine in water$ (3) $potassium bromide solution$ (4) $bromine in carbon tetrachloride at 0^{\circ} C .$ 354. $Match List - I with List - II. List-I (Reactants) (A) Phenol, Zn /Δ (B) Phenol, CHCl_{3}, NaOH, HCl (C) Phenol, CO_{2}, NaOH, HCl (D) Phenol, Conc. HNO_{3} List-II Products (I) Salicylaldehyde (II) Salicylic acid (III) Benzene (IV) Picric acid Choose the correct answer from the options given below.$ (1) $(A)-(IV), (B), (II), (C)-(I), (D)-(III)$ (2) $(A)-(IV), (B)-(I), (C)-(II), (D)-(III)$ (3) $(A)-(III), (B)-(I), (C)-(II), (D)-(IV)$ (4) $(A)-(III), (B)-(IV), (C)-(I), (D)-(II)$ 355. $An organic compound ' X' on treatment with PCC in dichloromethane gives the compound Y . Compound ' Y' reacts with I_{2} and alkali to form yellow precipitate of triiodomethane. The compound X is$ (1) $CH_{3} CHO$ (2) $CH_{3} CH_{2} OH$ (3) $CH_{3} COCH_{3}$ (4) $CH_{3} COOH$ 356. $Which one the following compounds will readily react with dilute NaOH ?$ (1) $C_{2} H_{5} OH$ (2) $C_{6} H_{5} OH$ (3) $C_{6} H_{5} CH_{2} OH$ (4) $(CH_{3})_{3} COH$ 357. $Benzene carbaldehyde is reacted with concentrated NaOH solution to give the products A and B . The product A can be used as food preservative and the product B is an aromatic hydroxy compound where OH group is linked to s p^{3} hybridised carbon atom next to benzene ring. The products A and B are respectively,$ (1) $sodium benzoate and phenol$ (2) $sodium benzoate and phenyl methanol$ (3) $sodium benzoate and cresol$ (4) $sodium benzoate and picric acid.$ 358. $When glycerol is treated with excess of HI, it produces$ (1) $2‐iodopropane$ (2) $allyl iodide$ (3) $propene$ (4) $glycerol triiodide$ 359. $In the cumene to phenol preparation in presence of air, the intermediate is$ (1) (2) (3) (4) 360. $What are X and Y in the following reactions? CH_{2} O (i) X (ii) H_{3} O^{+} CH_{3} (CH_{2})_{2} CH_{2} OH Y (i) C_{2} H_{5} MgBr (ii) H_{3} O^{+} CH_{3} CH_{2} C (CH_{3})_{2} OH$ (1) $C H_{3} - C H (C H_{3}) - M g B r X C_{2} H_{5} C O C H_{3} Y$ (2) $CH_{3} CH_{2} CH_{2} MgBr CH_{3} - CO - CH_{3}$ (3) $CH_{3} - CH_{2} - MgBr CH_{3} CH_{2} CHO$ (4) $(CH_{3})_{3} CMgBr CH_{3} - CO - CH_{3}$