Please refer to Assignments Class 11 Chemistry Organic Chemistry – Some Basic Principles and Techniques Chapter 12 with solved questions and answers. We have provided Class 11 Chemistry Assignments for all chapters on our website. These problems and solutions for Chapter 12 Organic Chemistry – Some Basic Principles and Techniques Class 11 Chemistry have been prepared as per the latest syllabus and books issued for the current academic year. Learn these solved important questions to get more marks in your class tests and examinations.
Organic Chemistry – Some Basic Principles and Techniques Assignments Class 11 Chemistry
Question. What is the correct IUPAC name of
(a) 4-methoxy-2-nitrobenzaldehyde
(b) 4-formyl-3-nitro anisole
(c) 4-methoxy-6-nitrobenzaldehyde
(d) 2-formyl-5-methoxy nitrobenzene
Answer
A
Question. The reaction of HCOOH with conc.H2SO4 gives which of the following compound?
(a) CO2
(b) CO
(c) Oxalic Acid
(d) Acetic acid
Answer
B
Question. The molecular formula C5H12 contains how many isomeric alkanes?
(a) 1
(b) 2
(c) 3
(d) 4
Answer
C
Question. 0.92 g of an organic compound was analysed by combustion method. The mass of the U- tube increased by 1.08 g. What is the percentage of hydrogen in the compound?
(a) 13.04%
(b) 52.17%
(c) 65.21%
(d) 11.30%
Answer
A
Question. Which element is estimated by Carius method
(a) Carbon
(b) Hydrogen
(c) Halogen
(d) Nitrogen
Answer
C
Question. An organic compound contains C = 38.8 H = 16 and N = 45.2. Empirical formula of the compound is
(a) CH3NH2
(b) CH3CN
(c) C2H5CN
(d) CH2(NH)2
Answer
A
Question. What is the state of hybridisation of carbon in carbanion?
(a) sp
(b) sp²
(c) sp³
(d) sp²d.
Answer
C
Question. The displacement of electrons in a multiple bond in the presence of attacking reagent is called
(a) Inductive effect
(b) Electromeric effect
(c) Resonance
(d) Hyper conjugation
Answer
B
Question. Identify the chiral molecule among the following:
(a) Isopropyl alcohol
(b) 2-pentanol
(c) 1-bromo 3-butene
(d) Isobutyl alcohol
Answer
D
Question. Which of the following acids has the smallest dissociation constant?
(a) CH3CHFCOOH
(b) FCH2CH2COOH
(c) BrCH2CH2COOH
(d) CH3CHBrCOOH
Answer
C