NEET UG Organic: Functional Groups: Amines – Chapter Test
NEET UG Organic: Functional Groups: Amines – Chapter Test is an online chapter test in the NEET UG pattern, covering Organic: Functional Groups. Attempt it on SeatBeat with a timer like the real exam, then see a detailed solution for every question and your score and weak-topic analysis.
Topics in this test
| Topic | Questions |
|---|---|
| Organic: Functional Groups | 20 |
Difficulty: 10 medium · 10 hard
Amines MCQ questions with answers
The first 3 of 20 questions. Unlock the series for the rest, each with a solution.
Q1. For the methylamines in aqueous solution, which sequence correctly represents their basic strength in decreasing order?
जलीय विलयन में मेथिलऐमीनों के लिए, कौन-सा अनुक्रम उनकी क्षारीय प्रबलता को घटते क्रम में सही रूप से निरूपित करता है?
- A. (CH3)2NH > CH3NH2 > (CH3)3N > NH3
- B. (CH3)3N > (CH3)2NH > CH3NH2 > NH3
- C. CH3NH2 > (CH3)2NH > (CH3)3N > NH3
- D. (CH3)2NH > (CH3)3N > CH3NH2 > NH3
Solution
In water the order is a balance of inductive effect, steric hindrance and solvation (stabilisation of the cation by hydrogen bonding); for methyl derivatives the observed order is (CH3)2NH > CH3NH2 > (CH3)3N > NH3.
जल में यह क्रम प्रेरणिक प्रभाव, त्रिविम बाधा (steric hindrance) और विलायकन (कैटायन का हाइड्रोजन आबंधन द्वारा स्थायीकरण) का संतुलन होता है; मेथिल व्युत्पन्नों के लिए प्रेक्षित क्रम (CH3)2NH > CH3NH2 > (CH3)3N > NH3 है।
Q2. In the Gattermann reaction, benzenediazonium chloride is converted to chlorobenzene using:
गैटरमान अभिक्रिया में बेन्ज़ीनडाइऐज़ोनियम क्लोराइड को क्लोरोबेन्ज़ीन में परिवर्तित किया जाता है, प्रयोग करते हुए:
- A. Cuprous chloride and HCl / क्यूप्रस क्लोराइड और HCl
- B. Copper powder and HCl / कॉपर चूर्ण और HCl
- C. Fluoroboric acid / फ्लोरोबोरिक अम्ल
- D. Cuprous cyanide / क्यूप्रस सायनाइड
Solution
The Gattermann modification uses copper powder in the presence of the halogen acid (HCl) to replace the diazonium group by chlorine; cuprous chloride in HCl would be the Sandmeyer reagent.
गैटरमान परिवर्तन हैलोजन अम्ल (HCl) की उपस्थिति में कॉपर चूर्ण का उपयोग करके डाइऐज़ोनियम समूह का क्लोरीन द्वारा प्रतिस्थापन करता है; HCl में क्यूप्रस क्लोराइड सैंडमायर अभिकर्मक होगा।
Q3. When aniline is treated with bromine water at room temperature, the product that separates out is:
जब ऐनिलीन को कमरे के ताप पर ब्रोमीन जल के साथ उपचारित किया जाता है, तो पृथक होने वाला उत्पाद है:
- A. o-bromoaniline / o-ब्रोमोऐनिलीन
- B. m-bromoaniline / m-ब्रोमोऐनिलीन
- C. 2,4,6-tribromoaniline / 2,4,6-ट्राइब्रोमोऐनिलीन
- D. p-bromoaniline / p-ब्रोमोऐनिलीन
Solution
The amino group is strongly activating and ortho/para directing, so bromination is not easily stopped at the monosubstituted stage; a white precipitate of 2,4,6-tribromoaniline is formed.
ऐमिनो समूह प्रबल सक्रियणकारी तथा ऑर्थो/पैरा निर्देशक है, अतः ब्रोमीनीकरण को एक-प्रतिस्थापित अवस्था पर रोकना सरल नहीं है; 2,4,6-ट्राइब्रोमोऐनिलीन का श्वेत अवक्षेप बनता है।
Frequently asked questions
How many questions are in the NEET UG Organic: Functional Groups: Amines – Chapter Test?
20 questions for 20 marks, to be answered in 20 minutes.
Is there negative marking in the NEET UG Organic: Functional Groups: Amines – Chapter Test?
Yes — 0.25 marks are deducted for each wrong answer, as in the real exam pattern.
Which topics does the NEET UG Organic: Functional Groups: Amines – Chapter Test cover?
Organic: Functional Groups (20 questions).
Is the NEET UG Organic: Functional Groups: Amines – Chapter Test free?
It is part of the NEET UG 2027 Mock Test Series (134 tests, ₹299). You can first try Biology in Human Welfare – Topic Test for free.
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