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MDCAT Mock Test
A timed 25-question mock for the Medical and Dental College Admission Test covering biology, chemistry, physics, english grammar. Answer, submit and review every question with its explanation; set negative marking to match your exam’s current scheme.
MDCAT mock test
25 questions · 1 mark each · the timer starts with your first answer and the test submits itself when time runs out.
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Q1.BiologyThe universal blood donor group is:
Answer: C — O−
O negative red cells lack A, B and Rh antigens.
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Q2.ChemistryRusting of iron requires:
Answer: A — Both oxygen and water
Iron rusts in the presence of oxygen and moisture, forming hydrated iron(III) oxide.
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Q3.PhysicsA transformer works on the principle of:
Answer: B — Mutual induction
A changing current in one coil induces a voltage in the other.
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Q4.English GrammarChoose the correct option: Neither the manager nor the clerks ___ present.
Answer: C — were
With neither…nor, the verb agrees with the nearer subject (“clerks”, plural) → were.
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Q5.BiologyThe green pigment in plants is:
Answer: B — Chlorophyll
Chlorophyll absorbs red and blue light for photosynthesis.
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Q6.ChemistryWhat is the mass of 4 mol of ammonia (NH₃)? (Molar mass 17 g/mol)
Answer: C — 68 g
Mass = moles × molar mass = 4 × 17 g/mol = 68 g.
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Q7.PhysicsA current of 1 A flows through a 2 Ω resistor. What is the potential difference across it?
Answer: B — 2 V
Ohm’s law: V = IR = 1 × 2 = 2 V.
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Q8.English GrammarChoose the correct preposition: She is good ___ mathematics.
Answer: C — at
The idiom is “good at” a subject or skill.
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Q9.BiologyThe largest organ of the human body is the:
Answer: A — Skin
The skin is the largest organ by area and weight.
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Q10.ChemistryWhich gas is responsible for most of the greenhouse effect from human activity?
Answer: C — Carbon dioxide
CO₂ from burning fossil fuels is the largest human-caused contributor.
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Q11.PhysicsThe upthrust on a body immersed in a fluid equals the weight of fluid displaced. This is:
Answer: B — Archimedes’ principle
Archimedes’ principle.
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Q12.English GrammarChoose the correct option: The number of applicants ___ increased.
Answer: B — has
“The number of” takes a singular verb; “a number of” takes a plural verb.
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Q13.BiologyThe functional unit of the kidney is the:
Answer: A — Nephron
Each kidney has about a million nephrons that filter blood.
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Q14.Chemistry8 g of glucose (molar mass 180) is dissolved to make 1000 mL of solution. Find the molarity.
Answer: C — 0.044 M
Moles = 8/180 = 0.044; molarity = moles ÷ litres = 0.044 ÷ 1 = 0.044 M.
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Q15.PhysicsFind the power dissipated when 0.5 A flows through a 20 Ω resistor.
Answer: A — 5 W
P = I²R = 0.5² × 20 = 5 W.
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Q16.English GrammarChoose the correctly punctuated sentence.
Answer: A — It’s a lovely day.
“It’s” is the contraction of “it is”; “its” is possessive.
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Q17.BiologyXylem in plants transports:
Answer: B — Water and minerals
Xylem carries water and minerals upward; phloem carries food.
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Q18.ChemistryWater has a maximum density at about:
Answer: A — 4 °C
Water is densest at about 4 °C.
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Q19.PhysicsAcceleration due to gravity on Earth’s surface is about:
Answer: C — 9.8 m/s²
g ≈ 9.8 m/s².
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Q20.English GrammarChoose the correct option: This is the best book I ___.
Answer: D — have ever read
A superlative + experience up to now uses the present perfect: “have ever read”.
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Q21.BiologyWhich blood cells help in clotting?
Answer: A — Platelets
Platelets (thrombocytes) form clots.
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Q22.ChemistryWhat is the mass of 2.5 mol of water (H₂O)? (Molar mass 18 g/mol)
Answer: C — 45 g
Mass = moles × molar mass = 2.5 × 18 g/mol = 45 g.
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Q23.PhysicsWhat force is needed to accelerate a 33 kg mass at 6 m/s²?
Answer: B — 198 N
F = ma = 33 × 6 = 198 N.
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Q24.English GrammarChoose the passive voice of: “The chef cooked a delicious meal.”
Answer: C — A delicious meal was cooked by the chef.
Simple past active → “was/were + past participle” in the passive.
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Q25.BiologyThe basic unit of heredity is the:
Answer: B — Gene
Genes are segments of DNA that carry hereditary information.
How the mock test works
- The timer starts with your first answer; the test submits itself when time runs out.
- Choose the negative marking that matches your exam (this test has no negative marking by default — check the official notification).
- After submitting you get your score, accuracy, time taken and a topic-wise breakdown, then every explanation.
- “New mock test” builds another paper — calculation questions get new numbers.
About MDCAT
Medical and Dental College Admission Test — conducted by Pakistan Medical & Dental Council (PM&DC). Admission test for medical and dental colleges in Pakistan.
Original practice questions written for this site in the style and difficulty of each exam’s syllabus. They are not past papers and the site is not affiliated with any exam body. Exam patterns, marking schemes and syllabi change — always check the latest official notification.
MDCAT practice topics
| Topic | Section | Question source |
|---|---|---|
| Biology | Science | Question bank |
| Chemistry | Science | Calculated + question bank |
| Physics | Science | Calculated + question bank |
| English Grammar | English | Question bank |