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DAT Mock Test
A timed 25-question mock for the Dental Admission Test covering biology, chemistry, algebra, geometry & mensuration. Answer, submit and review every question with its explanation; set negative marking to match your exam’s current scheme.
DAT 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 number of chromosomes in a normal human body cell is:
Answer: A — 46
Humans have 46 chromosomes (23 pairs).
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Q2.ChemistryWhich gas is produced when zinc reacts with dilute hydrochloric acid?
Answer: A — Hydrogen
Zn + 2HCl → ZnCl₂ + H₂.
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Q3.AlgebraFind the sum of the first 13 terms of the AP 2, 10, 18, …
Answer: D — 650
Sₙ = n/2 × [2a + (n − 1)d] = 13/2 × [4 + 96] = 650.
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Q4.Geometry & MensurationFind the distance between (-4, -2) and (4, 13).
Answer: B — 17
Distance = √((Δx)² + (Δy)²) = √(8² + 15²) = 17.
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Q5.BiologyWhich organelle synthesises proteins?
Answer: C — Ribosome
Ribosomes translate mRNA into protein.
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Q6.ChemistryWhat is the pH of a solution with [H⁺] = 10⁻⁶ mol/L?
Answer: D — 6
pH = −log[H⁺] = −log(10⁻⁶) = 6.
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Q7.AlgebraSolve: x² − 2x − 48 = 0
Answer: B — -6, 8
Find two roots with sum 2 and product -48: -6 and 8. So x² − 2x − 48 = (x + 6)(x − 8) = 0.
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Q8.Geometry & MensurationFind the volume of a cylinder with radius 10 cm and height 11 cm.
Answer: C — 3,455.75 cm³
Using πr²h with π = 3.1416: 3,455.75 cm³.
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Q9.BiologyThe father of genetics is:
Answer: B — Gregor Mendel
Mendel’s pea plant experiments established the laws of inheritance.
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Q10.ChemistryThe noble gas used in advertising signs that glows red-orange is:
Answer: D — Neon
Neon glows red-orange in discharge tubes.
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Q11.AlgebraFind log₃ 81.
Answer: B — 4
log_3(81) asks “3 to what power gives 81?” → 3^4 = 81, so the answer is 4.
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Q12.Geometry & MensurationFind the area of a right triangle with legs 8 cm and 15 cm.
Answer: B — 60 cm²
Area = ½ × base × height = ½ × 8 × 15 = 60 cm².
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Q13.BiologyThe basic unit of heredity is the:
Answer: D — Gene
Genes are segments of DNA that carry hereditary information.
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Q14.Chemistry4 g of HCl (molar mass 36.5) is dissolved to make 250 mL of solution. Find the molarity.
Answer: D — 0.438 M
Moles = 4/36.5 = 0.11; molarity = moles ÷ litres = 0.11 ÷ 0.25 = 0.438 M.
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Q15.AlgebraFind log₅ 3,125.
Answer: A — 5
log_5(3125) asks “5 to what power gives 3125?” → 5^5 = 3125, so the answer is 5.
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Q16.Geometry & MensurationFind the distance between (-4, -3) and (-1, 1).
Answer: A — 5
Distance = √((Δx)² + (Δy)²) = √(3² + 4²) = 5.
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Q17.BiologyInsulin is secreted by the:
Answer: D — Pancreas
Beta cells of the pancreatic islets of Langerhans secrete insulin.
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Q18.ChemistryWhich bond is formed by the sharing of electrons?
Answer: C — Covalent
Covalent bonds share electron pairs.
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Q19.AlgebraFind log₂ 16.
Answer: A — 4
log_2(16) asks “2 to what power gives 16?” → 2^4 = 16, so the answer is 4.
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Q20.Geometry & MensurationFind the area of a right triangle with legs 7 cm and 24 cm.
Answer: A — 84 cm²
Area = ½ × base × height = ½ × 7 × 24 = 84 cm².
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Q21.BiologyWhich part of the flower develops into the fruit?
Answer: B — Ovary
After fertilisation the ovary develops into the fruit.
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Q22.ChemistryWhat is the mass of 4 mol of ammonia (NH₃)? (Molar mass 17 g/mol)
Answer: A — 68 g
Mass = moles × molar mass = 4 × 17 g/mol = 68 g.
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Q23.AlgebraSolve: x² + x − 6 = 0
Answer: B — -3, 2
Find two roots with sum -1 and product -6: 2 and -3. So x² + x − 6 = (x − 2)(x + 3) = 0.
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Q24.Geometry & MensurationFind the distance between (2, 5) and (8, 13).
Answer: D — 10
Distance = √((Δx)² + (Δy)²) = √(6² + 8²) = 10.
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Q25.BiologyWhich enzyme in saliva begins starch digestion?
Answer: A — Salivary amylase (ptyalin)
Salivary amylase breaks starch into maltose.
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 DAT
Dental Admission Test — conducted by American Dental Association (ADA). Dental school admission test covering natural sciences, perceptual ability, reading and quantitative reasoning.
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.
DAT practice topics
| Topic | Section | Question source |
|---|---|---|
| Biology | Science | Question bank |
| Chemistry | Science | Calculated + question bank |
| Algebra | Mathematics | Calculated (new numbers every set) |
| Geometry & Mensuration | Mathematics | Calculated (new numbers every set) |