Preparing for CUET 2026 Science subjects? Check the CUET Science most repeated questions and download the previous year question papers for Physics, Chemistry, Biology, Mathematics, Langauge and General Aptitude Test here. CUET UG 2026 exam will be held between May 11 and  May 31, 2026.

CUET Science Questions

CUET UG Science Most Repeated Question: Practicing with CUET UG Science previous year question papers is one of the best ways to score well in exam. Students can download the CUET question paper for PCM and PCMB. CUET Science question papers can be used to understand the latest exam structure, marking scheme, important topics and difficulty level of subject-wise exam. Solving the prevoous year question paper also improves speed, accuracy, and time management skills in test takers. In this article get the most repeated CUET Science questions and get access to subject-wsie Science question papers. National Testing Agency will conduct CUET UG 2026 exam between May 11 and May 31, 2026.

Most Repeated Question in CUET UG Chemistry

Question: A reaction takes 30 minutes to complete 50% of the reaction and takes the 45 minutes to complete te 75% reaction. The order of the reaction is?

1. First
2. Second
3. Third
4. Zero

Question: Which of the following halo alkanes reacts with aqueous KOH most easily?

1. 1 Bromobutane
2. 2 Bromobutane
3. 2 Bromo-2-methylpropane
4. 2 chlorobutane

Question:

1. Dichloridibis
2. Nickel Chlorido bis
3. Diphenyl Phosphine nickle II
4. Dichlorobis (Diphenyl Phosphine) Nickle II

Question: Camphor in nitrogen gas is a type of solution

1. Gas-Gas
2. Solid-Gas
3. Liquid-Gas
4. Solid-liquid

Question: An alloy of copper, silver, and gold is found to have copper constituting the ccp lattice. If silver atoms occupy the edge centers and gold is present at the body center, the alloy has a formula

1. Cu4Ag2Au
2. Cu4Ag4Au
3. Cu4Ag3Au
4. CuAgAu

Question: Copper crystallizes in fcc with a unit cell length of 361 pm. What is the radius of the copper atom?

1. 157 pm
2. 181 pm
3. 127 pm
4. 108 pm

Question: Alkali halides do not show Frenkel defects because

1. Cations and anions have almost equal size
2. There is a large difference in the size of cations and anions
3. Cations and anions have a low coordination number
4. Anions cannot be accommodated in voids

Question: A solution of urea (mol. mass 56 g mol-1) boils at 100.18°C at atmospheric pressure. If Kf and Kb for water are 1.86 and 0.512 K kg mol-1, respectively, the above solution will freeze at

1. -0.654°C
2. 654°C
3. -6.54°C
4. 54°C

Most Repeated Question in CUET UG Physics

Question: The transfer of integral number of _____ is one of the evidence of quantization of electric charge. Fill in the blank with the correct answer from options below

1. Photons
2. Nuclei
3. Electrons
4. Neutrons

Question: When a slab of insulating material 4 mm thick is introduced between the plates of a parallel plate capacitor of separation 4 mm, it is found that the distance between the plates has to be increased by 3.2 mm to restore the capacity to its original value. The dielectric constant of the material is ______.

1. 2
2. 5
3. 3
4. 7

Question: A metal wire is subjected to a constant potential difference. When the temperature of the metal wire increases, the drift velocity of the electron in it ____. Fill in the blank

1. Increases, thermal velocity of the electrons decreases
2. Decreases, thermal velocity of the electrons decreases
3. Increases, thermal velocity of the electrons increases
4. Decreases, thermal velocity of the electrons decreases

Most Repeated Questions in Biology

Question: The fruit which develop without fertilization is called

1. True fruit
2. Parthenocarpic fruit
3. False fruit
4. Polyembryonic fruit

Question: Transfer of pollen grains from anther of flower to the stigma of a flower of different plant is called as:

1. Fertilisation
2. Geitonogamy
3. Xenogamy
4. Cleistogamy

Question: Which of the following structures have 3n (triploid) number of chromosomes?

1. Zygote
2. Megaspore mother cell
3. Primary endosperm cell
4. Synergids

Question: Colostrum secreted by mother is rich in:

1. Ig D antibodies
2. Ig E antibodies
3. Ig A antibodies
4. Ig M antibodies

Question: When a snapdragon plant homozygous for red flower (RR) is crossed with another plant bearing white flower, (IT) what colour will be observed in flowers of F1 generation?

1. Red
2. White
3. Pink
4. Red and White

Most Repeated Questions in CUET Mathematics

Question: If A and B are symmetric matrices of the same order, then AB-BA is a:

1. Symmetric matrix
2. Zero matrix
3. Skew symmetric matrix
4. Identity matrix

Question: If A is a square matrix of order 4 and |A|=4, then |2A| will be:

1. 8
2. 64
3. 16
4. 4

Question: The area of the region bounded by the lines x + 2y= 12, x = 6 and x-axis is:

1. 34 sq units
2. 20 sq units
3. 24 sq units
4. 16 sq units

Question: A dice is rolled thrice. What is the probability of getting a number greater than 4 in the first and second through of dice and a number less than 4 in the third row?

1. 1/3
2. 1/6
3. 1/9
4. 1/18

CUET Science Previous Year Papers

Refer to table below to check CUET previous year question papers of Science subjects to practice for examination.

CUET UG Science Question Paper Pattern

Candidates preparing for CUET UG Science subjects must check the CUET exam pattern for science subjects in the table below:

Why are CUET UG Science Repeated Questions Important?

Practicing with the CUET UG Science repeated questions help candidates in several ways:

• Helps identify the important and high weightage topics
• Improves speed and correctness to answer questions
• Build confidence for main exam day
• Helps in understanding the NTA CUET question paper pattern
• Increases the chances of scoring 90+ percentile

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CUET Science Datesheet