Title 12. ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES - 02.pdf ✅

1 JEE Advanced 2024 General Organic Chemistry 1. The correct basicity order of indicated atoms P, Q and R is – (1) R > Q > P (2) Q > P > R (3) P > R > Q (4) P > Q > R 2. Which of the following is the correct order for bond energy for C – H bonds in these compounds? (1) Y > Z > X (2) X > Z > Y (3) X > Y > Z (4) Z > X > Y 3. What is the order of rate of reaction with AgNO3 of the following compounds? (1) I < II < III (2) III < II < I (3) II > III > I (4) III > I > II 4. Steric inhibition of resonance can be expected in (1) (2) (3) (4) 5. Which of the following reaction will not be favourable in the forward direction? (1) CH3ONa+CH3COOH → CH3OH + CH3COONa (2) PhONa + NH3 → PhOH + NaNH2 (3) HC  CH + NaNH2 →HC  CNa + NH3 (4) HCOOH + PhONa → HCOONa + PhOH 6. Which of the following reaction will not give aromatic product? (1) (2) (3) (4) 7. Which of the following are resonance structures of their Hybrid? (1) I (2) II (3) III (4) IV 8. Select the correct statement(s): (1) (2) CH ,:CCl ,Na 3 2   all three species are electrophiles (3) has higher heat of hydrogenation/mol than (4) Correct acidic strength order of nitro phenols is DPP-02
2 9. Which is correct order of heat of hydrogenation: (1) (2) (3) CH2 = CH – CH2 – CH3 < CH2 = CH – CH = CH2 < CH2 = C = CH – CH3 (4) CH  C – CH2 – CH = CH2 < CH  C – CH2 – C  CH 10. Use the following data to answer the questions below: Calculate the resonance energy of anthracene in kcal/mol. 11. Among the following compounds: (i) (ii) 2 C H8 8 − (iii) (iv) (v) (vi) (vii) (viii) (ix) 1 C H3 3 + (x) OH  (xi) (a) Number of compounds which are aromatic = w (b) Number of compounds which are non-aromatic = x (c) Number of compounds which are anti-aromatic = y (d) Number of compounds which readily undergo Dimerization at room temperature = z. What is the sum of w + x + y + z. 12. Sum of products → molecular weight of gas (y) + molecular weight of gas (z) is 13. Consider following compounds and give the answers. (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (a) How many compounds are aromatic. (b) How many compounds are non-aromatic. (c) How many compounds are anti-aromatic. (d) How many compounds are heterocyclic. 14. Consider following compounds (a) Number of compounds which are aromatic (x). (b) Number of compounds which can evolve H2 gas on reaction with Na metal (y). (c) Number of compounds which can evolve CO2 gas on reaction with NaHCO3 (z). 15. Consider given compounds & write the number of compounds which have higher HOC than
3 16. Number of compounds which are more acidic than 17. How many compounds have (–I) group directly attached to benzene? 18. Find the number of resonating structure conjugate base of Carbolic acid (Phenol). 19. What is the value of sum of molecular masses of gas A, B and C? [Fill answer in four digits Example 99 as 0099] 20. Some compounds are given: (a) How many compounds are soluble in aq. NaHCO3? (b) How many compounds are soluble in aq. NaOH? (c) How many compounds react with NaNH2? (d) How many compounds liberates H2 gas on reaction with Na metal? 21. How many of the following carbocations have stability greater than an isopropyl cation (CH3)2CH+ ? (1) (2) (3) (4) (5) (6) (7) 22. Arrange the following in increasing order of acid strength (1) c < f < d < a < b < e (2) f < d < c < b < e < a (3) f < c < d < b < e < a (4) c < d < f < a < b < e Paragraph for question no. 23 & 24 23. How many moles of NaHCO3 will consume on reaction with 1mole of this compound? (1) 2 (2) 3 (3) 4 (4) 1 24. What is the correct order of basic strength of the following? (1) e > f > g (2) f > e > g (3) g > e > f (4) e > g > f
4 Answer Key 1. (4) 2. ( 3 ) 3. ( 2 ) 4. ( 3 ) 5. ( 2 ) 6. ( 2 ) 7. ( 1 ) 8. ( 3 ) 9. (1, 2, 3, 4 ) 10. 84 kcl/mol 11. (13) 12. (46 ) 1 3 . (6221) 14 . (0684) 15. (4) 16. (0005) 17 . (5) 18 . (5) 19 . (0035) 20 . 4577 21 . (4) 22 . ( 4 ) 23 . (1) 24 . ( 2 )