A full-length NEET mock in the real pattern: 90 Biology, 45 Physics and 45 Chemistry questions, +4 for a correct answer and −1 for a wrong one. Mock 9 is the same paper for every student, so your rank is among everyone who sat it. Difficulty: 29% easy, 61% medium, 10% hard.
Sample questions from Mock 9 with answers
10 of the 180 questions, with answers and explanations. The rest are in the app.
Question 1
Biology · Body Fluids and CirculationIn the electrocardiogram (ECG), the P-wave represents:
- A the electrical excitation (or depolarisation) of the atria, which leads to the contraction of both the atria
- B the depolarisation of the ventricles
- C the repolarisation of the atria
- D the repolarisation of the ventricles
Answer: A. the electrical excitation (or depolarisation) of the atria, which leads to the contraction of both the atria
Why: The QRS complex is the ventricular depolarisation.
Question 2
Biology · Microbes in Human WelfareSwiss cheese gets its characteristic large holes from gas produced by the bacterium:
- A Lactobacillus
- B Propionibacterium sharmanii
- C Escherichia coli
- D Salmonella typhi
Answer: B. Propionibacterium sharmanii
Why: Propionibacterium sharmanii produces large amounts of carbon dioxide gas during fermentation, which forms the characteristic large holes in Swiss cheese.
Question 3
Biology · Plant Growth and DevelopmentRedifferentiation is the process in which:
- A the cell fuses
- B the cell divides
- C the dedifferentiated cells once again lose the capacity to divide and mature to perform the specific functions
- D the cells die
Answer: C. the dedifferentiated cells once again lose the capacity to divide and mature to perform the specific functions
Why: The secondary xylem is an example.
Question 4
Biology · Cell Cycle and Cell DivisionThe number of chromosomes in the onion root tip cells is 16. The number of chromosomes at the anaphase of the mitosis would be:
- A 16
- B 64
- C 8
- D 32 (16 chromosomes at each pole)
Answer: D. 32 (16 chromosomes at each pole)
Why: The sister chromatids separate, doubling the chromosome count.
Question 5
Biology · Body Fluids and CirculationThe pacemaker of the human heart, which initiates the heartbeat, is the:
- A atrioventricular node (AV node)
- B sinoatrial node (SA node)
- C bundle of His
- D Purkinje fibers
Answer: B. sinoatrial node (SA node)
Why: The SA node, located in the wall of the right atrium, generates the electrical impulses that set the rhythm of the heartbeat, earning it the name "pacemaker."
Question 6
Physics · Electric Charges and FieldsAn electron is placed in a uniform electric field of 1000 N/C. Its acceleration is about (e = 1.6 × 10⁻¹⁹ C, m = 9.1 × 10⁻³¹ kg):
- A 9.8 m/s²
- B 1.8 × 10⁸ m/s²
- C 1.8 × 10⁻¹⁴ m/s²
- D 1.8 × 10¹⁴ m/s²
Answer: D. 1.8 × 10¹⁴ m/s²
Why: a = eE/m = 1.6 × 10⁻¹⁹ × 1000/9.1 × 10⁻³¹ ≈ 1.76 × 10¹⁴ m/s².
Question 7
Physics · Electromagnetic WavesElectromagnetic waves were first produced and detected in the laboratory by:
- A Faraday
- B Maxwell
- C Hertz
- D Marconi
Answer: C. Hertz
Why: Maxwell predicted them in 1865, and Hertz demonstrated them in 1887.
Question 8
Chemistry · Solid StateWhich of the following is an example of an ionic solid?
- A Cu
- B CsCl
- C I₂
- D SiC
Answer: B. CsCl
Why: SiC is a covalent solid, I₂ is molecular and Cu is metallic.
Question 9
Chemistry · PolymersNeoprene is a polymer of:
- A isoprene
- B chloroprene
- C vinyl chloride
- D styrene
Answer: B. chloroprene
Why: Neoprene (polychloroprene) is a synthetic rubber resistant to oil and heat.
Question 10
Chemistry · AminesHinsberg's reagent is:
- A acetyl chloride
- B benzoyl chloride
- C benzenesulphonyl chloride
- D nitrous acid
Answer: C. benzenesulphonyl chloride
Why: It distinguishes primary, secondary and tertiary amines by the products and their solubility in alkali.