Product(s) of the following reaction (A) ethanol and ethane (B) ethanol and meth

Question

Product(s) of the following reaction (A) ethanol and ethane (B) ethanol and methylbromide (C) ethanol (D) ethanol and ethylbromide (E) methanol and ethylbromide Which of the following reagent can be used lo prepare 2-methyl-cyclohexanol from 2- methyl-cyclohexanene? (A) H_2 (B) CH_3MgBr/H_3O^- (C) NaBH_4/H_3O^+ (D) HCN (E) PCC Product of the following reaction (A) 2 ethyl-pentane (B) 2 ethyl-hexane (C) 2-ethoxy-pentane (D) 2ethoxy-hexane (E) 2-ethoxy-butane Product(s) of the following reactions (A) methanol and n-butanol (B) ethanol and n-butanol (C) n-propanol and i-butanol (D) n-butanol (E) ethanol Which of the following reagent(s) gives the reaction below (A) CH_3MgBr (B) NBS (C) H_2/Pd-C (D) LiAlH-4/H_3O^+ (E) PCC Which of the following reagent(s) can be used to prepare 2-pentanol from acetaldehyde (CH_3CHO) (A) n-C_3H_7 MgBr/H_2O^- (B) C_2H_5 MgBr/H_3O^+ (C) NaBH_4/H_3O^+ (D) LiAlH_4/H_3O^+ (E) n-C_4H_ MgBr/ Which of the following reaction involves a benzyne mechanism? (A) Ph-CH_3 rightarrow Ph-COOH (B) Ph - CH_3 rightarrow Ph-CHO (C) Ph-OH rightarrow Ph-Cl (D) Ph-Cl rightarrow Ph-OH (E) none of Which of the following reagent(s) in excess gives the reaction below (A) C_2H_5MgBr/H_2O^+ (B) CH_3MgBr/H_3O^- (C) NaBh_4/H_3O^+ (D) LiAlH_4/H_3O^+ (E) BH_3/THF Product of the following reaction (A) cyclohexanol (B) cis-1,2-cyclohexanediol (C) trans-1,2-cyclohexanediol (D) cis-1,3-cyclohexane (E) trans-1,3-cyclohexanediol Which of the lowing reagent(s) can be used to prepare a mixture of o and p-nitro toluene from (A) HNO_2 (B) HNO_3 (C0 HNO_3/Fe (D0 HNO_3/H_2SO_4 (E) NaNO_2 Friedal-Craft alkyation reagent(s) (A) C_2H_5Cl/AlCl_3 (B) Cl_2/CH_3COCl (C) CH_3COCl/AlCl_3 (D) CH_3COCl/FeCl-3 (E) CH_3Cl/Fe

Explanation / Answer

Q29.

CH3-CH2-O-CH2-CH3 is an ether, it will react with hydrogen bromide as follows:

CH3-CH2-O-CH2-CH3 + HBr --> CH3-CH2-O(-) + H(+) + Br(-) + (+)CH2CH3

so

the alcohol + bromide alkyl form

CH3-CH2-O-OH and CH3-CH2-Br

this is ethanol + ethyl bromide

choose D

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