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DAT Practice Questions
Original practice questions for the Dental Admission Test (American Dental Association (ADA)), mixed across 4 topics with instant answers and explanations. Practise by topic below or take the timed mock test.
DAT mixed practice
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Q1.BiologyXylem in plants transports:
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Answer: D — Water and minerals
Xylem carries water and minerals upward; phloem carries food.
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Q2.ChemistryThe atomic number of an element equals the number of:
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Answer: D — Protons
Atomic number = number of protons in the nucleus.
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Q3.AlgebraFind the sum of the first 20 terms of the AP 11, 19, 27, …
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Answer: B — 1740
Sₙ = n/2 × [2a + (n − 1)d] = 20/2 × [22 + 152] = 1,740.
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Q4.Geometry & MensurationFind the volume of a sphere of radius 3 cm.
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Answer: C — 113.1 cm³
Using (4/3)πr³ with π = 3.1416: 113.1 cm³.
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Q5.BiologyWhich blood cells help in clotting?
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Answer: A — Platelets
Platelets (thrombocytes) form clots.
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Q6.Chemistry4 g of KCl (molar mass 74.5) is dissolved to make 500 mL of solution. Find the molarity.
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Answer: B — 0.107 M
Moles = 4/74.5 = 0.054; molarity = moles ÷ litres = 0.054 ÷ 0.5 = 0.107 M.
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Q7.AlgebraFind log₅ 625.
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Answer: B — 4
log_5(625) asks “5 to what power gives 625?” → 5^4 = 625, so the answer is 4.
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Q8.Geometry & MensurationFind the volume of a sphere of radius 5 cm.
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Answer: C — 523.6 cm³
Using (4/3)πr³ with π = 3.1416: 523.6 cm³.
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Q9.BiologyThe powerhouse of the cell is the:
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Answer: C — Mitochondrion
Mitochondria produce ATP through cellular respiration.
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Q10.ChemistryThe chemical formula of common salt is:
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Answer: C — NaCl
Common salt is sodium chloride.
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.
Practise by topic
- Biology questions — Learn structure → function links (mitochondria → ATP, nephron → filtration), the major hormones and their glands, and deficiency diseases.
- Chemistry questions — Moles = mass ÷ molar mass; molarity = moles ÷ litres.
- Algebra questions — Factorise quadratics by finding two numbers with the right sum and product; check roots by substitution.
- Geometry & Mensuration questions — Memorise core formulas (circle πr², triangle ½bh, Pythagoras, distance √((x₂−x₁)² + (y₂−y₁)²)).
- DAT mock test — 25 timed questions.
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) |