ExamsMy practice
31
In a regular octahedral molecule, MX6, the number of X - M - X bonds at 180 is
- three
- two
- six
- four
AIPMT 2004
Chemical Bonding and Molecular Structure
Previous year questions with solutions · 2000 – 2026
109Questions
36Papers covered
5.56% ↓16.7%Weightage in 2026
’00
’01
’02
’03
’04
’05
’06
’07
’08
’09
’10
’11
’12
’13
’14
’15
’16
’17
’18
’19
’20
’21
’22
’23
’24
’25
’26
Year-wise statistics questions · papers · average per paper · weightage
| Year | Questions | Papers | Avg / paper | Weightage |
|---|---|---|---|---|
| 2026 | 5 | 2 | 2.5 | 5.56% ↓16.7% |
| 2025 | 3 | 1 | 3 | 6.67% ↓3.8% |
| 2024 | 7 | 2 | 3.5 | 6.93% ↑76.7% |
| 2023 | 2 | 1 | 2 | 3.92% ↓1% |
| 2022 | 4 | 2 | 2 | 3.96% ↓34% |
| 2021 | 3 | 1 | 3 | 6.00% ↑35% |
| 2020 | 2 | 1 | 2 | 4.44% ↑100% |
| 2019 | 1 | 1 | 1 | 2.22% ↓50% |
| 2018 | 2 | 1 | 2 | 4.44% ↓33.3% |
| 2017 | 3 | 1 | 3 | 6.67% ↓14.3% |
| 2016 | 7 | 2 | 3.5 | 7.78% →0% |
| 2015 | 7 | 2 | 3.5 | 7.78% ↑75% |
| 2014 | 2 | 1 | 2 | 4.44% ↓43.5% |
| 2013 | 7 | 2 | 3.5 | 7.87% ↑4.9% |
| 2012 | 6 | 2 | 3 | 7.50% ↓24.1% |
| 2011 | 8 | 2 | 4 | 9.88% ↑31.7% |
| 2010 | 6 | 2 | 3 | 7.50% ↓23.5% |
| 2009 | 5 | 1 | 5 | 9.80% ↑66.7% |
| 2008 | 3 | 1 | 3 | 5.88% ↑47.1% |
| 2007 | 2 | 1 | 2 | 4.00% ↓60% |
| 2006 | 5 | 1 | 5 | 10.00% ↑25% |
| 2005 | 4 | 1 | 4 | 8.00% ↓4% |
| 2004 | 4 | 1 | 4 | 8.33% ↑308.3% |
| 2003 | 1 | 1 | 1 | 2.04% ↓49% |
| 2002 | 2 | 1 | 2 | 4.00% ↓49% |
| 2001 | 4 | 1 | 4 | 7.84% →0% |
| 2000 | 4 | 1 | 4 | 7.84% |
⚠ 4 of these questions are out of the current syllabus (marked on the question).
32
In BrF3 molecule, the lone pairs occupy equatorial positions to minimize
- lone pair - bond pair repulsion only
- bond pair - bond pair repulsion only
- lone pair - lone pair repulsion and lone pair - bond pair repulsion
- lone pair - lone pair repulsion only.
AIPMT 2004
33
Which of the following two are isostructural?
- XeF2, IF2-
- NH3, BF3
- CO32-, SO32-
- PCl5, ICl5
AIPMT 2001
34
In which of the following bond angle is maximum ?
- NH3
- NH4+
- PCl3
- SCl2
AIPMT 2001