Class 11 Sample Paper 2022 Solution Chemistry Term 1

Practice Paper – I (2021-22) Class-XI Chemistry (Subject Code -043) (Marking scheme) Instructions- All questions carry equal marks.  Section A : first 20 questions will be considered for evaluation.  Section B : first 20 questions will be considered for evaluation.  Section C : first 05 questions will be considered for evaluation.  There is no negative marking. Section A 1. C, Orientation 2. A, mole of nitrogen gas = 1.4/28=0.05 moles=6.022x10 x0.05x2=6.022x10 3. A, Na 4. D, Cl 5. C,C 6. D, KMn 7. C, Sigma bond = 12 , Pi bond =3 8. A, functional isomers 9. B, H2O is bent 10. C, 4s 11. B, P>Cl>N>F 12. C, Due to resonance C =CH-CH+2 is more stable. 13. C, 3- Ethyl-1,1- dimethylcyclohexane 14. B, Protium 15. B, = 16. B, 2 2H2O + 17. B, 18. B, Two, n-l-1= 2 4-1-1=2 19. D, 20. D, 2s 2p 21. C, valence electron 22. D, 4 =16 docs. 23. C, group of 7,8,9. It is called hydride gap. 24. A, a pair of electrons to donate

25. B, mole fraction. 26. A, nitrogen, due to half filled electronic configuration and small size. 27. A, The complete balanced equation is +5 +6 3 +3 28. D, -CH= , Due to presence of -H 29. A, Ca +2 O + Ca ( ) 30. B, In 14 g of N2 Mole of O2 =16/32=0.5 Mole of N2=14/28=0.5 Equal moles carry equal no. of molecules of N2 and O2 31. D, , both have (Ar) 3 32. B, (ii) and (iii) 33. C, > > More bond order and more stability. 34. C 35. C, Sn acting as a reductant. 36. B 37. D, 0.5 mole of 38. B, Its property of catenation. 39. A, lambda= h/mv =6.62x10 / 0.1 x 100 = 6.62x10 m 40. B, three isomers 41. C, Unbinilium,Ubn 42. D C -CH-CH-CHO Cl Br 43. C, n l ml 3 2 -2 44. A, alkali metals 45. C, Assertion is correct but reason is false. 46. C,Assertion is correct but reason is false. 47. C, Assertion is correct but reason is false. 48. B, Both A and R are true but R is not correct explanation of assertion. 49. A, Both A and R are true, And Reason is the correct explanation of assertion. 50. C, (i)-C, (ii)-D,(iii)-B,(iv)-A 51. C, stoichiometric-Ionic hybrid; Non-stoichiometric-metallic hydride 52. A, s-orbital: spherical shape ; p-orbital: dumbbell shape 53. C, inductive effect 54. D, resonance effect docs. 55. A,halogens