See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

H3 D H OH 2 SOCl 2 SOCl Pyridine x y Which statement is correct? (A) x and y are superimposable mirror images (B) x and y are non-superimposable mirror images (C) x and y are neither mirror images nor super imposable (D) x and y are structural isomers Ans. B AITS-PT-II (Paper-1)-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 Sol. x is formed via SNi and y is formed via SN2. Section – A (Maximum Marks: 24) This section contains SIX (06) question. Each question has FOUR options (A), (B), (C) and (D). ONE OR MOER THAN ONE of these four option(s) is (are) correct answer(s). 24. Which of the following pair of compounds does not represent enantiomeric pair? (A) OH C H3 COOH OH OH and COOH CH3 H OH O H H H OH (B) O CH2OH H H OH H OH OH H H OH and O CH2OH H H OH OH H OH H H OH (C) CH3 C H3 and CH3 C H3 (D) and Cl Cl Cl Cl Ans. A, B, C Sol. A – diastereomeric pair. B – diastereomeric pair. C – identical pair. 25. Which of the following does not give Lassaigne’s test for nitrogen? (A) Hydrazine (B) 3 HN (C) 2 PhN Cl   (D) 3 2 CH CONH Ans. A, B, C AITS-PT-II (Paper-1)-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. 2 PhN Cl   gives off N2 while N2H4 and HN3 don’t have ‘C’ atoms to form NaCN. 26.   3 2 4 2 4 i O /THF conc. H SO Mg Hg hot ii H O alk. KMnO x y z N W        Which of the following option(s) is/are correct? (A) x is a diketone (B) y is a gemdiol (C) z is a conjugated diene (D) W and N are diketone and dicarboxylic acid   Ans. A, C, D Sol. 2 4 conc. H SO O O OH OH OH 4 hot alkaline KMnO CH2COOH CH2COOH  O O (x) (y) (z) (N) (w) 27. How many of the following elimination takes place via 1CB E mechanism (A) 2 5 C H O    Br (B) OH    C H3 CH OH CH2 C O CH3 C H3 CH CH C O CH3 (C) MeO    Ph MeO NO2 H Ph NO2 (D) 2 NaOD D O,  C H3 S O CH2 CH2 OPh C H3 S O CH CH2 AITS-PT-II (Paper-1)-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 Ans. B, C, D Sol. Carbanion is stable in B, C, D. 28. Which of the following reactions/statements is/are correct? (A)      2 2 i Cl /H ii RO excess iii H O    O OR O (B) HCl 3 2 3 2 2 Peroxide CH CH CH CH CH CH Cl    (C)   2 i Na/Ether ii H O Product, product gives Tollen's test  C H3 C O OC2H5 (D) Lactide   C H3 CH OH COOH Ans. A, C, D Sol. Only HBr shows peroxide effect. hydroxy  acid forms Lactide on heating. 29. Select the best reagent for the conversion x     5 3 i PCl ii y iii H O O O C O OH C O O H5C2 H2C CH2OH CH COOC2H5 (CH2)2 CH OH COOH H2C CH2OH CH2 CH CH2OH (CH2)2 CH OH COOH 2 5 C H OH  (A) 4 x is LiAlH (B) 4 x is NaBH (C) 4 y is NaBH (D) y is 2 6 B H / THF Ans. B, D AITS-PT-II (Paper-1)-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 18 Section – B (Maximum Marks: 12) This section contains THREE (03) questions. The answer to each question is a NON-NEGATIVE INTEGER. 30. Number of chiral carbon atoms in – D (+) glucose? Ans. 5 Sol. O CH2OH H H OH H OH OH H H OH