NEET 2025 Level Organic Chemistry - Some Basic Principles And Techniques Chemistry NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

a.	In crystallization, an impure compound is dissolved in a solvent in which it is highly soluble at room temperature.
b.	In the positive resonance effect(+R), the transfer of electrons is always from an atom or substituted group attached to the conjugated system.
c.	One of the technological applications of fractional distillation is to separate different fractions of crude oil in the petroleum industry.

The correct statements are:

1.	(a) and (b) only	2.	(b) and (c) only
3.	(a) and (c) only	4.	(a), (b), and (c)

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Subtopic: Electron Displacement Effects |

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The correct arrangement of the following carbocations in decreasing order of their stability is:

1. A > B > C > D
2. B > C > A > D
3. C > B > A > D
4. C > A > B > D

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Subtopic: Electron Displacement Effects |

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The hyperconjugation effect is not observed in:

(i)		(ii)
(iii)		(iv)

1. (i) and (ii)
2. (i), (ii) and (iii)
3. (i) only
4. (i), (ii) and (iv)

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Consider the resonance structure of CH₃COOCH₃as follows:

The correct statement among the following is-

1.	I and II cannot be the major contributors to the real structure of CH₃COOCH₃
2.	I and II can be the major contributors to the real structure of CH₃COOCH₃
3.	I is more stable than II.
4.	None of the above