Consider the following reactions : (i) Glucose + ROH HCl dry Acetal O ) CO CH ( of . eq x 3 acetyl derivative (ii) Glucose H / Ni A O ) CO CH ( of . eq y 3 acetyl derivative (iii) Glucose O ) CO CH (

Question

Consider the following reactions : (i) Glucose + ROH HCl dry Acetal O ) CO CH ( of . eq x 3 acetyl derivative (ii) Glucose H / Ni A O ) CO CH ( of . eq y 3 acetyl derivative (iii) Glucose O ) CO CH ( of . eq z 3 acetyl derivative ‘x’, ‘y’ and ‘z’ in these reactions are respectively.

(A) 5, 6 & 6
(B) 4, 5 & 5
(C) 4, 6 & 5
(D) 5, 4 & 5

Prashant Kotian · Accepted Answer

Correct answer: C. | JEE MAIN-2020 | DATE : 02-09-2020 (SHIFT-1) | PAPER-1 | OFFICIAL PAPER | CHEMISTRY PAGE # 7 HNO3 (CHOH)4 CHO CH2OH Oxidation (CHOH)4 COOH COOH (CH–OAc)4 COOH COOH (Ac2)O 4-mole (Ac2)O require (Ac2)O (CHOAc)4 CHO CH2OAc 5-mole (Ac2)O require H2/Ni (CHOH)4 CH2OH CH2OH (CH–OAc)4 CH2OAc CH2OAc (Ac2)O 6-mole (Ac2)O require SECTION – 2 : (Maximum Marks : 20)  This section contains FIVE (05) questions. The answer to each question is NUMERICAL VALUE with two digit integer and decimal upto one digit.  If the numerical value has more than two decimal places truncate/round-off the value upto TWO decimal places.  Full Marks : +4 If ONLY the correct option is chosen.  Zero Marks : 0 In all other cases [kaM 2 ¼vf/kdre vad% 20)  bl [kaM esa ik¡p (05) iz'u gSA izR;sd iz'u dk mÙkj la[;kRed eku (NUME

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