NEET UG · Biology · Animal Kingdom
Chordate Classes: NEET previous year questions
16 questions in ten years of NEET, in 9 of 10 papers. Pattern: Every year. Here is how it is asked and which ideas come back.
- Asked in 10 years
- 16
- about 1.5 per paper
- Years asked
- 9/10
- last asked 2026
- Weighted estimate
- 1.7
- model; history: 1.5 a paper on average, typically 1–2
Key findings
- 01
Asked in 9 of 10 papers, 16 questions in all: #25 of 204 topics by ten-year total. It comes back every 1.1 years on average.
- 02
40% of its questions since 2018 tested an idea never asked before; 5 repeated an idea from the year before.
- 03
The most repeated idea is Fundamental Chordate Features, asked 6 times (2020, 2022, 2023, 2024, 2025, 2026), usually as “count correct statements on chordate features”.
- 04
NEET has asked 0 of the 9 ideas in this topic; 0 have never been asked, directly or indirectly.
- 05
Mostly asked as one-line MCQ (50%); 50% easy, 0% hard, and up from 1.4 to 1.9 questions a paper since 2024.
Questions per year
- Up to 2023
- 1.4
- per paper
- Since 2024
- 1.9
- +0.6
- Usual gap
- 1.1 yrs
- between papers asking it
- Swing
- ±0.6
- questions, year to year
Recent framings
- statement I/II on vertebrate class features
- count correct statements on chordate features
- identify group by anatomical feature
Revise first
Fundamental Chordate Features (2020 2022 2023 2024 2025 2026); Amphibia and Reptilia (2026); Comparison of Fish Classes (2020 2024)
How it is asked
Difficulty, format and skill
Across all 16 questions on Chordate Classes since 2017.
Difficulty
QUESTIONS- Easy8 · 50%
- Medium8 · 50%
- Hard0 · 0%
Format
SHARE- One-line MCQ · 8 Q50%
- Other · 3 Q19%
- Assertion–reason · 2 Q13%
- Match the lists · 2 Q13%
- Two statements · 1 Q6%
Skill tested
SHARE- Recall · 12 Q75%
- Concept · 3 Q19%
- Application · 1 Q6%
Repeats
New idea, or one asked before?
Each column is a paper. Blue questions tested an idea NEET had not asked before; navy ones went back to an idea from an earlier paper. 2017 is the first paper, so everything in it counts as new.
- Idea asked for the first time
- Idea asked in an earlier paper
Coverage of the topic
NEET has asked 0 of the 9 ideas in this topic. 0 have never been asked yet.
- Asked directly0 · 0%
- Touched inside another question9 · 100%
- Never asked0 · 0%
Ideas come from Lumi’s syllabus map of NCERT. A never-asked idea is not a safe skip: most new questions come from exactly these.
Drill down
Idea, year, question
Every idea NEET tested in this topic, with its ten papers. Open one to read the questions.
- Repeated6 · 38%
- 2026 · Q132Which of the following is not a characteristic of chordates?
easyOne-line MCQAsked the year before
- 2025 · Q142Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : All vertebrates…
easyAssertion–reasonAsked the year before
- 2024 · Q191The following are the statements about non-chordates: A. Pharynx is perforated by gill slits. B. Notochord is absent. C. Central nervous…
easyOtherAsked the year before
- 2023 · Q189Select the correct statements with reference to chordates. A. Presence of a mid-dorsal, solid and double nerve cord. B. Presence of closed…
mediumOtherAsked the year before
- 2022 · Q182Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : All vertebrates…
easyAssertion–reason
- 2020 · Q26Which of the following statements are true for the phylum-Chordata ? (a) In Urochordata notochord extends from head to tail and it is…
mediumOtherNew idea
- 2026 · Q132
- Repeated3 · 19%
- Repeated2 · 13%
- Repeated2 · 13%
- 1 · 6%
- 1 · 6%
- 1 · 6%
Squares are the ten papers, 2017 to 2026; darker means more questions. Share is of the level above.
Ideas
Every idea inside this topic
7 different ideas were tested; 4 came more than once.
- Fundamental Chordate Features6×
count correct statements on chordate features
Other · 11% next - Aves3×
identify group by anatomical feature
One-line MCQ · 6% next - Comparison of Fish Classes2×
match list on animal class features
Match the lists · 6% next - Mammalia2×
identify unique features of a class
One-line MCQ · 6% next - Amphibia and Reptilia1×
statement i/ii on vertebrate class features
Two statements · 6% next - Cyclostomata1×
identify group by anatomical feature
One-line MCQ · 6% next - Homeotherms and Poikilotherms1×
odd-one-out among animal genera
One-line MCQ · 4% next
Chance next is the historical rate at which an idea with this record came back in the following paper. It is low for every idea, which is why learning the topic beats memorising past questions. All repeated ideas
Every question
Chordate Classes questions, year by year
The opening words of each question as it appeared in the official paper, with the idea it tested.
NEET 20262 questions
- Q130Given below are two statements: Statement I: The class name Reptilia refers to creeping or crawling mode of locomotion. Statement II: All…
Idea: Amphibia and Reptilia
New ideaMediumTwo statements - Q132Which of the following is not a characteristic of chordates?
Idea: Fundamental Chordate Features
Asked last yearEasyOne-line MCQ
NEET 20252 questions
- Q139All living members of the class Cyclostomata are:
Idea: Cyclostomata
New ideaMediumOne-line MCQ - Q142Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : All vertebrates…
Idea: Fundamental Chordate Features
Asked last yearEasyAssertion–reason
NEET 20242 questions
- Q163Match List I with List II List-I | List-II A. Pterophyllum | I. Hag fish B. Myxine | II. Saw fish C. Pristis | III. Angel fish D.…
Idea: Comparison of Fish Classes
MediumMatch the lists - Q191The following are the statements about non-chordates: A. Pharynx is perforated by gill slits. B. Notochord is absent. C. Central nervous…
Idea: Fundamental Chordate Features
Asked last yearEasyOther
NEET 20232 questions
- Q189Select the correct statements with reference to chordates. A. Presence of a mid-dorsal, solid and double nerve cord. B. Presence of closed…
Idea: Fundamental Chordate Features
Asked last yearMediumOther - Q194The unique mammalian characteristics are:
Idea: Mammalia
EasyOne-line MCQ
NEET 20222 questions
- Q155In which of the following animals, digestive tract has additional chambers like crop and gizzard ?
Idea: Aves
Asked last yearMediumOne-line MCQ - Q182Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : All vertebrates…
Idea: Fundamental Chordate Features
EasyAssertion–reason
NEET 20211 question
- Q173Which one of the following organisms bears hollow and pneumatic long bones ?
Idea: Aves
MediumOne-line MCQ
NEET 20202 questions
- Q26Which of the following statements are true for the phylum-Chordata ? (a) In Urochordata notochord extends from head to tail and it is…
Idea: Fundamental Chordate Features
New ideaMediumOther - Q37Match the following columns and select the correct option. Column - I | Column - II (a) 6 - 15 pairs of gill slits | (i) Trygon (b)…
Idea: Comparison of Fish Classes
New ideaMediumMatch the lists
NEET 20182 questions
- Q148Identify the vertebrate group of animals characterized by crop and gizzard in its digestive system.
Idea: Aves
New ideaEasyOne-line MCQ - Q150Which one of these animals is not a homeotherm ?
Idea: Homeotherms and Poikilotherms
New ideaEasyOne-line MCQ
NEET 20171 question
- Q141Which among these is the correct combination of aquatic mammals ?
Idea: Mammalia
EasyOne-line MCQ
Questions from the official NEET UG papers published by NTA (CBSE before 2019). Topic and idea tags, counts and notes are Lumi’s.