NEET (UG) 2026–27
PCB Grand Revision — Volume 2: Challenge Tests
Original high-yield practice • Concept traps • Speed drills • Error tracking
Aligned for preparation using the published NEET (UG)-2026 syllabus; not an official NTA paper.
,How to Use This Volume
• Attempt each drill without notes.
• Mark questions you guessed even when correct.
• Review the concept immediately after checking the key.
• Repeat only the error questions after 48–72 hours.
• Track accuracy and time, not marks alone.
, Challenge Test 1
24 questions: 8 Biology + 8 Chemistry + 8 Physics. Suggested time: 36 minutes.
Biology
1. A cell actively moving ions against their electrochemical gradient requires:
A. ATP-dependent transport B. simple diffusion C. osmosis only D. filtration
2. The Calvin cycle occurs mainly in the:
A. thylakoid lumen B. stroma C. cytosol D. nucleus
3. ADH primarily increases:
A. water reabsorption B. glucose synthesis C. bile secretion D. heart valve closure
4. In a typical monohybrid cross Aa × Aa, the phenotypic ratio for complete dominance is:
A. 1:1 B. 3:1 C. 9:3:3:1 D. 1:2:1
5. The lac operon is classically an example of:
A. gene regulation B. DNA replication C. translation only D. meiosis
6. A community's species richness refers to:
A. number of species B. number of genes in one organism C. total biomass only D. energy flow
7. Antibodies are mainly produced by:
A. plasma cells B. RBCs C. platelets D. osteocytes
8. The light reaction of photosynthesis is associated with:
A. thylakoid membranes B. nuclear envelope C. Golgi lumen D. cell wall
Chemistry
1. If a solution has pOH = 3 at 25°C, its pH is:
A. 3 B. 7 C. 11 D. 14
2. A buffer resists changes in:
A. pH B. mass C. atomic number D. density only
3. Increasing temperature generally increases reaction rate because more molecules:
A. exceed activation energy B. lose all kinetic energy C. become ions D. stop colliding
4. The conjugate base of H2CO3 after loss of one proton is:
A. CO3²− B. HCO3− C. H3CO3+ D. OH−
5. Which has the highest electronegativity among these?
A. Na B. Mg C. Cl D. K
6. A coordinate bond involves a shared pair supplied initially by:
A. one atom B. neither atom C. the nucleus only D. all atoms equally
7. Ethene reacts with H2 in the presence of a suitable catalyst by:
A. addition B. substitution only C. elimination D. neutralization
8. A primary alcohol on controlled oxidation can give:
A. aldehyde B. alkyne C. amide directly D. alkene only
Physics
1. A body moving in a circle at constant speed has:
A. zero acceleration B. centripetal acceleration C. zero velocity D. constant direction of velocity
2. The dimensional formula of pressure is:
A. ML−1T−2 B. MLT−2 C. ML²T−2 D. M■L■T■
3. In an ideal projectile, at the highest point its vertical velocity is:
A. maximum B. zero C. equal to g D. infinite
4. The equivalent capacitance of two identical capacitors C in parallel is:
A. C/2 B. C C. 2C D. C²
5. Ohm's law is written as:
PCB Grand Revision — Volume 2: Challenge Tests
Original high-yield practice • Concept traps • Speed drills • Error tracking
Aligned for preparation using the published NEET (UG)-2026 syllabus; not an official NTA paper.
,How to Use This Volume
• Attempt each drill without notes.
• Mark questions you guessed even when correct.
• Review the concept immediately after checking the key.
• Repeat only the error questions after 48–72 hours.
• Track accuracy and time, not marks alone.
, Challenge Test 1
24 questions: 8 Biology + 8 Chemistry + 8 Physics. Suggested time: 36 minutes.
Biology
1. A cell actively moving ions against their electrochemical gradient requires:
A. ATP-dependent transport B. simple diffusion C. osmosis only D. filtration
2. The Calvin cycle occurs mainly in the:
A. thylakoid lumen B. stroma C. cytosol D. nucleus
3. ADH primarily increases:
A. water reabsorption B. glucose synthesis C. bile secretion D. heart valve closure
4. In a typical monohybrid cross Aa × Aa, the phenotypic ratio for complete dominance is:
A. 1:1 B. 3:1 C. 9:3:3:1 D. 1:2:1
5. The lac operon is classically an example of:
A. gene regulation B. DNA replication C. translation only D. meiosis
6. A community's species richness refers to:
A. number of species B. number of genes in one organism C. total biomass only D. energy flow
7. Antibodies are mainly produced by:
A. plasma cells B. RBCs C. platelets D. osteocytes
8. The light reaction of photosynthesis is associated with:
A. thylakoid membranes B. nuclear envelope C. Golgi lumen D. cell wall
Chemistry
1. If a solution has pOH = 3 at 25°C, its pH is:
A. 3 B. 7 C. 11 D. 14
2. A buffer resists changes in:
A. pH B. mass C. atomic number D. density only
3. Increasing temperature generally increases reaction rate because more molecules:
A. exceed activation energy B. lose all kinetic energy C. become ions D. stop colliding
4. The conjugate base of H2CO3 after loss of one proton is:
A. CO3²− B. HCO3− C. H3CO3+ D. OH−
5. Which has the highest electronegativity among these?
A. Na B. Mg C. Cl D. K
6. A coordinate bond involves a shared pair supplied initially by:
A. one atom B. neither atom C. the nucleus only D. all atoms equally
7. Ethene reacts with H2 in the presence of a suitable catalyst by:
A. addition B. substitution only C. elimination D. neutralization
8. A primary alcohol on controlled oxidation can give:
A. aldehyde B. alkyne C. amide directly D. alkene only
Physics
1. A body moving in a circle at constant speed has:
A. zero acceleration B. centripetal acceleration C. zero velocity D. constant direction of velocity
2. The dimensional formula of pressure is:
A. ML−1T−2 B. MLT−2 C. ML²T−2 D. M■L■T■
3. In an ideal projectile, at the highest point its vertical velocity is:
A. maximum B. zero C. equal to g D. infinite
4. The equivalent capacitance of two identical capacitors C in parallel is:
A. C/2 B. C C. 2C D. C²
5. Ohm's law is written as:
