See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

CH CHO  shows nucleophilic addition reaction with (A) 3 CHCl / OH  (B) 3 NaHSO (C) 2 4 N H (D) All of these Ans. D Sol. All of these gives nucleophilic addition reaction with 3 CH CHO  . AITS-PT-II (Paper-2)-PCM-JEE(Advanced)/2022 FIITJEE Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi -110016, Ph 46106000, 26569493, Fax 26513942 website: www.fiitjee.com 14 27. Which of the following reaction(s) does not involve in nucleophilic attack on C O group? (A) Aldol reaction (B) Cannizzaro reaction (C) Perkin reaction (D) Rosenmund’s reduction Ans. D Sol. In Rosenmund reduction it’s catalytic reduction of RCOCl into RCHO. Paragraph for Question Nos. 28 and 29   4 2 2 i HCN/OH LiAlH HNO /HCl ii H O,Weak Acid x y z    O 28.    2 2 i NH OH ii H iii H O/ z w, w is    (A) (B) O (C) N H (D) Nylon-6 Ans. D 29.   4 2 5 2 4 i Alkaline KMnO / C H OH/conc. H SO Excess ii H Z N P,     (A)    2 2 5 4 2 P is CH COOC H (B) P on reaction with 2 5 C H O Na   gives  keto ester Q  AITS-PT-II (Paper-2)-PCM-JEE(Advanced)/2022 FIITJEE Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi -110016, Ph 46106000, 26569493, Fax 26513942 website: www.fiitjee.com 15 (C) Q on heating after hydrolysis gives O (D) All of these Ans. D Sol. (for the Q. No. 28 and 29)   2 i HCN/OH ii H O,WA  O O H CN 4 LiAlH  O H CH2NH2 2 HNO /HCl  O (z) O    2 2 i NH OH ii H iii H O/    NH (CH2)4 C O   w Polymer Nylon 6  O        2 5 2 4 O C H OH 2 2 2 5 conc. H SO 4 2 4 2 CH COOH CH COOC H P   RO O COOC2H5  Q  N 3 H O  O COOH   O Section – B (Maximum Marks: 12) This section contains THREE (03) questions. The answer to each question is a NON-NEGATIVE INTEGER. 30. How many of the following are meta directing (Major) groups CF3 , C O Cl , Cl CH2NO2 , , C CH3 CH3 CH3 CN , C O CH3 O , N(CH3)3 , C H3 Ans. 5 AITS-PT-II (Paper-2)-PCM-JEE(Advanced)/2022 FIITJEE Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi -110016, Ph 46106000, 26569493, Fax 26513942 website: www.fiitjee.com 16 Sol. CF3 , C O Cl , CH2NO2 , , C N N(CH3)3 31. How many of these reaction gives coloured product (s) (not white) (a) Liberman's Nitrous test   OH (b) 3 Neutral FeCl soln.  OH (c) Cerric ammonium nitrate test 2 RCH OH (d) Victor Meyer test 3 R COH  (e) 3 NaHSO test   C H3 C O CH3 (f) 2 4 DNP test   C H3 C O CH3 (g) Heinsberg test 2 2 RCH NH  (h) Xanthoprotic test Protein  Ans. 5 Sol. (d), (e) and (g) are colourless/white. 32. Number of isomers with the formula 7 8 C H O containing a benzene ring Ans. 5 Sol. CH2OH O CH3 OH CH3 OH CH3 OH CH3 AITS-PT-II (Paper-2)-PCM-JEE(Advanced)/2022 FIITJEE Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi -110016, Ph 46106000, 26569493, Fax 26513942 website: www.fiitjee.com 17 Section – C (Maximum Marks: 12) This section contains THREE (03) question stems. There are TWO (02) questions corresponding to each question stem. The answer to each question is a NUMERICAL VALUE. If the numerical value has more than two decimal places, truncate/round-off the value to TWO decimal places. Question Stem for Question Nos. 33 and 34 Question Stem 3 3 2 5 2 CH COCH /C H O Na OH /I Yellow A B C        C H3 C O OC2H5 Ag C D   If 8.8 gram of 3 2 5 CH COOC H was taken, then the mass of product D is found to be x gram and mass of product A is found to be y gram. (Assume 100% efficiency of each reaction). [Atomic mass of C = 12, H = 1, O = 16] 33. Value of x is_________ Ans.