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organic chemistry- haloalkanes and haloarenes, Lecture notes of Chemistry

Savitribai Phule Pune UniversityChemistry

lecture notes for class 12. and some questions solved by the teacher

Typology: Lecture notes

2022/2023

Uploaded on 06/18/2025

komal-kale
komal-kale 🇮🇳

3 documents

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Class Test
Class: - 11th
Q1. MCQ
1.
2. For Kp = Kc:
(a) Δn=1
(b) Δn>1
(c) Δn=0
(d) Δn<1
3. The solubility product of CaSO4 is 6.4 x 10-5. The solubility of salt in mol/L is
(a) 8x10-16
(b) 8x10-2
(c) 8x10-3
(d)16x 10-3
4. Find the oxidaon state of I in H4IO6–
(a) +7
(b) +5
(c) +1
(d) –1
pf3
pf4

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Download organic chemistry- haloalkanes and haloarenes and more Lecture notes Chemistry in PDF only on Docsity!

Class Test

Class: - 11

th

Q1. MCQ

  1. For Kp = Kc: (a) Δn= (b) Δn> (c) Δn= (d) Δn<
  2. The solubility product of CaSO 4 is 6.4 x 10-5. The solubility of salt in mol/L is (a) 8x10- (b) 8x10- (c) 8x10- (d)16x 10-
  3. Find the oxidaƟon state of I in H 4 IO 6 – (a) + (b) + (c) + (d) –
  1. The values of x and y in the following reacƟon, xCl 2 + 6OH–^ (hot & conc.) → ClO 3 –^ + y Cl–^ + 3H 2 O are (a) x = 2, y = 4 (b) x = 5, y = 3 (c) x = 3, y = 5 (d) x = 4, y = 2
  2. Which of the following can give both ethane and methane in a one-step reacƟon? a) CH 3 OH b) C 2 H 5 OH c) CH 3 Br d) C 2 H 5 Br
  3. An olefin on reducƟve ozonolysis gives only ethanal as the major product. Name the olefin. a) But-1-ene b) Propene c) Ethene d) But-2-ene
  4. AsserƟon: Aniline is beƩer nucleophile than anilium ion. Reason: Anilium ion have + ve charge
  5. AsserƟon: Sulphur present in an organic compound can be esƟmated quanƟtaƟvely by Carius method. Reason: Sulphur is separated easily from other atoms in the molecule and gets precipitated as light- yellow solid. Q2. Short Answer Type QuesƟons
    1. Nitric acid is an oxidising agent and reacts with PbO but it does not react with PbO 2. Explain why?

Q3. 3 Marks QuesƟons 1. (a) Calculate the pH of the soluƟon

(B) With respect to conformers of ethane, which of the following is true? (a) Bond length remains the same but the bond angle changes. (b) Both length and bond angle changes. (c) Bond angle and bond length remains the same. (d) Bond angle remains the same and the bond length changes. (C) Increasing order of stability of the three conformers of ethane is: (a) eclipsed > gauche > staggered (b) eclipsed < gauche < staggered (c) gauche > staggered > eclipsed (d) eclipsed > staggered > gauche (D) Increasing order of stability of the three conformers of ethylene glycol is: (a) eclipsed > gauche > staggered (b) eclipsed < gauche < staggered (c) gauche > staggered > eclipsed (d) eclipsed < staggered > gauche Q5. 5 Marks