Summary: Do not match the columns from top to bottom. Start with the pair you are most certain of, strike out every option that disagrees, then take the next surest pair. Usually two correct matches are enough to leave only one option.Why these questions waste time
A typical NEET match-the-column question has four items in List I, four in List II and four options, each giving a complete set of matches. Students often start with item A, puzzle over it, move to B, and try to build the full answer before looking at the options. That takes two or three minutes and invites mistakes on the one pair they are unsure of.
The options already contain most of the work. Each option is a complete matching, and they differ from each other in only a few places. If you know two pairs for certain, you can usually discard three options without thinking about the other two pairs at all.
The method
- Scan both lists once. Do not try to match yet. Just notice which pairs you recognise immediately.
- Pick your surest pair. It does not need to be A. Choose the one you would bet on.
- Strike out options. Cross out every option that does not have that pair.
- Pick the next surest pair and repeat on the options that remain.
- Stop when one option is left. Check one more pair in it as a quick confirmation if time allows.
If you get down to two options and are stuck, look at where those two differ. It is usually one pair swapped. Think about that single pair only.
Worked example 1: meiosis
Match List I with List II.
| List I (substage of prophase I) | List II (event) |
|---|---|
| A. Leptotene | i. Crossing over |
| B. Zygotene | ii. Terminalisation of chiasmata |
| C. Pachytene | iii. Synapsis of homologous chromosomes |
| D. Diakinesis | iv. Chromosomes become gradually visible under the light microscope |
Options:
- A-iv, B-iii, C-i, D-ii
- A-iv, B-i, C-iii, D-ii
- A-iii, B-iv, C-i, D-ii
- A-ii, B-iii, C-i, D-iv
Surest pair: diakinesis is marked by terminalisation of chiasmata, so D-ii. Option 4 has D-iv. Strike it.
Next surest: synapsis happens in zygotene, so B-iii. Option 2 has B-i and option 3 has B-iv. Strike both.
Only option 1 is left. You never had to think about leptotene or pachytene, although a quick check confirms C-i, since crossing over happens in pachytene. This question takes under a minute this way. The facts are all in the NCERT chapter on cell cycle and cell division.
Worked example 2: diseases and pathogens
| List I (disease) | List II (causative organism) |
|---|---|
| A. Typhoid | i. Wuchereria |
| B. Common cold | ii. Trichophyton |
| C. Filariasis | iii. Salmonella typhi |
| D. Ringworm | iv. Rhinoviruses |
Options:
- A-iii, B-ii, C-i, D-iv
- A-iii, B-iv, C-i, D-ii
- A-i, B-iv, C-iii, D-ii
- A-iv, B-iii, C-ii, D-i
Typhoid is caused by Salmonella typhi, so A-iii. That removes options 3 and 4. Between 1 and 2, the difference is B and D. Common cold is caused by rhinoviruses, so B-iv. The answer is option 2. The pathogens are listed in NCERT's human health and disease chapter.
When you know only one pair
Sometimes you are sure of just one match. That usually removes one or two options. With +4 for a right answer and minus 1 for a wrong one, a guess between two remaining options has an expected value of +1.5 marks, and between three it is still slightly positive at about +0.67. With no elimination it drops to +0.25 and adds a wrong answer more often than not. Our post on assertion-reason and statement questions shows this calculation in a table.
A good rule: attempt a match-the-column question if you can remove at least two options. Otherwise leave it for the end and move on.
Where match-the-column questions come from
In Biology they usually test pairs that NCERT lists together: hormones and their sources, diseases and pathogens, enzymes and functions, plant families and features, stages and events, examples and groups in the plant and animal kingdom chapters. Tables in NCERT are a rich source, since a table is already a set of pairs.
In Chemistry they often pair compounds with properties, reactions with reagents, or molecules with their shapes. In Physics they pair quantities with dimensions or units, or situations with graphs. The same method works in all three.
How to practise
- For every NCERT table, cover one column and recall the other. This is match-the-column practice in its most direct form.
- When you solve these questions, write down which pair you used first. Over time you will see which pairs you trust and which you do not.
- Time yourself. With the elimination method, most match-the-column questions should take under a minute.
- Solve previous year questions of this type chapter by chapter. Our previous year papers can be attempted online with analysis.
Common questions
Should I always check all four pairs?
Only if time allows. Once elimination leaves one option, the answer is decided. Checking one more pair is a good habit, but checking all four in every question costs time you may need elsewhere.
What if two options survive and I do not know the difference?
With two options left, a guess has a positive expected value of +1.5 marks. It is usually worth attempting.
Can List II have extra items?
Some questions have more items in List II than List I, or use a pair more than once. Read the instructions each time; the elimination method still works.