Select Chapter Topics:
Q. No.Match List-I with List-II.
Choose the correct answer from the options given below:
| List-I (Molecule) |
List-II
(Number and types of bond/s between two carbon atoms)
|
||
| A. | Ethane | I. | \(\small{\mathrm{One ~\sigma-bond~ and~ Two~ \pi-bonds}}\) |
| B. | Ethene | II. | \(\text { Two } \pi \text {-bonds }\) |
| C. | Carbon molecule, \(\mathrm{C} _2\) |
III. | \(\text { One } \sigma \text {-bond }\) |
| D. | Ethyne | IV. | \(\small{\mathrm{One ~\sigma-bond ~and ~One~ \pi-bond}}\) |
| 1. | A-IV, B-III, C-II, D-I | 2. | A-III, B-IV, C-II, D-I |
| 3. | A-III, B-IV, C-I, D-II | 4. | A-I, B-IV, C-II, D-III |
Subtopic: Hybridisation & Structure of Carbon Compounds |
75%
Level 2: 60%+
NEET - 2024
Hints
The number of \(\sigma\) bonds, \(\pi\) bonds and lone pair of electrons in pyridine, respectively, are:
1. 12, 2, 1
2. 11, 2, 0
3. 12, 3, 0
4. 11, 3, 1
1. 12, 2, 1
2. 11, 2, 0
3. 12, 3, 0
4. 11, 3, 1
Subtopic: Hybridisation & Structure of Carbon Compounds |
69%
Level 2: 60%+
NEET - 2023
Hints
What is the hybridization shown by C1 and C2 carbons, respectively in the given compound?
\(\mathrm{ OHC-CH=CH-{^2}CH_2-{^1}COOCH_3}\)
\(\mathrm{ OHC-CH=CH-{^2}CH_2-{^1}COOCH_3}\)
| 1. | sp2 and sp3 | 2. | sp2 and sp2 |
| 3. | sp3 and sp2 | 4. | sp3 and sp3 |
Subtopic: Hybridisation & Structure of Carbon Compounds |
67%
Level 2: 60%+
NEET - 2022
Hints
The number of sigma () and pi () bonds in pent-3-en-1-yne are:
1. 13 bonds and no bond
2. 10 bonds and 3 bonds
3. 8 bonds and 5 bonds
4. 11 bonds and 2 bonds
Subtopic: Hybridisation & Structure of Carbon Compounds |
87%
Level 1: 80%+
NEET - 2019
Hints
The total number of \(\pi\)-bond electrons in the given below structure are:
| 1. | Four (4) | 2. | Eight (8) |
| 3. | Twelve (12) | 4. | Sixteen (16) |
Subtopic: Hybridisation & Structure of Carbon Compounds |
69%
Level 2: 60%+
NEET - 2015
Hints
Links
The enolic form of ethyl acetoacetate is given below:
The number of σ and π bonds in the enolic form are respectively:
1. 18 sigma bonds and 2 pi-bonds
2. 16 sigma bonds and 1 pi-bond
3. 9 sigma bonds and 2 pi-bonds
4. 9 sigma bonds and 1 pi-bond
Subtopic: Hybridisation & Structure of Carbon Compounds |
89%
Level 1: 80%+
NEET - 2015
Hints
is:
Subtopic: Hybridisation & Structure of Carbon Compounds |
84%
Level 1: 80%+
NEET - 2013
Hints
The outer orbitals of C in an ethene molecule can be considered to be hybridized to give three equivalent sp2 orbitals. The total number of sigma (\(\sigma\)) and pi(\(\pi\)) bonds in ethene molecule are:
1. 3 sigma (\(\sigma\)) and 2 pi(\(\pi\)) bonds
2. 4 sigma (\(\sigma\)) and 1 pi(\(\pi\)) bonds
3. 5 sigma (\(\sigma\)) and 1 pi(\(\pi\)) bonds
4. 1 sigma (\(\sigma\)) and 2 pi(\(\pi\)) bonds
1. 3 sigma (\(\sigma\)) and 2 pi(\(\pi\)) bonds
2. 4 sigma (\(\sigma\)) and 1 pi(\(\pi\)) bonds
3. 5 sigma (\(\sigma\)) and 1 pi(\(\pi\)) bonds
4. 1 sigma (\(\sigma\)) and 2 pi(\(\pi\)) bonds
Subtopic: Hybridisation & Structure of Carbon Compounds |
84%
Level 1: 80%+
NEET - 2013
Hints
The radical, 
is aromatic because it has:
1. 7 p-orbitals and 6 \(\pi\) electrons
2. 7 p-orbitals and 7 \(\pi\) electrons
3. 6 p-orbitals and 7 \(\pi\) electrons
4. 6 p-orbitals and 6 \(\pi\) electrons
is aromatic because it has:1. 7 p-orbitals and 6 \(\pi\) electrons
2. 7 p-orbitals and 7 \(\pi\) electrons
3. 6 p-orbitals and 7 \(\pi\) electrons
4. 6 p-orbitals and 6 \(\pi\) electrons
Subtopic: Hybridisation & Structure of Carbon Compounds |
Level 3: 35%-60%
AIPMT - 2013
Hints
Which of the following options is the correct IUPAC name for the given compound?
1. 4-Ethyl-1-fluoro-2-nitrobenzene
2. 4-Ethyl-1-fluoro-6-nitrobenzene
3. 3-Ethyl-6-fluoro-1-nitrobenzene
4. 1-Ethyl-4-fluoro-3-nitrobenzene
1. 4-Ethyl-1-fluoro-2-nitrobenzene
2. 4-Ethyl-1-fluoro-6-nitrobenzene
3. 3-Ethyl-6-fluoro-1-nitrobenzene
4. 1-Ethyl-4-fluoro-3-nitrobenzene
Subtopic: Nomenclature |
59%
Level 3: 35%-60%
NEET - 2024
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