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NEET Mock Test - 3 - NEET MCQ


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30 Questions MCQ Test NEET Mock Test Series - Updated 2025 Pattern - NEET Mock Test - 3

NEET Mock Test - 3 for NEET 2025 is part of NEET Mock Test Series - Updated 2025 Pattern preparation. The NEET Mock Test - 3 questions and answers have been prepared according to the NEET exam syllabus.The NEET Mock Test - 3 MCQs are made for NEET 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for NEET Mock Test - 3 below.
Solutions of NEET Mock Test - 3 questions in English are available as part of our NEET Mock Test Series - Updated 2025 Pattern for NEET & NEET Mock Test - 3 solutions in Hindi for NEET Mock Test Series - Updated 2025 Pattern course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt NEET Mock Test - 3 | 180 questions in 180 minutes | Mock test for NEET preparation | Free important questions MCQ to study NEET Mock Test Series - Updated 2025 Pattern for NEET Exam | Download free PDF with solutions
NEET Mock Test - 3 - Question 1
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A rigid container with thermally insulated walls contains a coil of resistance 100 Ω, carrying current 1 A. Change in internal energy after 5 min will be

Detailed Solution for NEET Mock Test - 3 - Question 1
W = 0. Therefore, from first law of thermodynamics,

ΔU = ΔQ = i2Rt

= (1)2(100)(5 × 60)J = 30 kJ .

NEET Mock Test - 3 - Question 2
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Two spherical bodies of mass M and 5M and radii R and 2R respectively are released in free space with initial separation between their centres equal to 12R. If they attract each other due to gravitational force only, then distance covered by the smaller body just before collision is

Detailed Solution for NEET Mock Test - 3 - Question 2
Let the spheres collide after time t, when the smaller sphere covered distance x1 and bigger sphere covered distance x2.

The gravitational force acting between two spheres depends on the

distance which is variable quantity.

The gravitational force,

Acceleration of smaller body,

Acceleration of bigger body,

From equation of motion,

We know that x1 + x2 = 9R

Therefore, the two spheres collide when the smaller sphere covers a distance of 7.5R.

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NEET Mock Test - 3 - Question 3
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The pressure of a medium is changed from 1.01 × 105 Pa to 1.165 × 105 Pa and change in volume is 10% keeping temperature constant. The bulk modulus of the medium is

Detailed Solution for NEET Mock Test - 3 - Question 3
From the definition of bulk modulus,

Substituting the values, we have

NEET Mock Test - 3 - Question 4
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A charge +q is fixed at each of the points x = x0, x = 3x0, x = 5x0 ........∞ on the x−axis and a charge −q is fixed at each of the points x = 2x0, x = 4x0, x = 6x0 .........,∞. Here, x0 is a positive constant. Take the electric potential at a point due to a charge Q at a distance r from it to be Then the potential at the origin due to the above system of charges is
Detailed Solution for NEET Mock Test - 3 - Question 4
Potential at origin will be given by

NEET Mock Test - 3 - Question 5
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The dimensional formula for magnetic flux is
Detailed Solution for NEET Mock Test - 3 - Question 5
According to Faraday’s law of electromagnetic induction, E.M.F.

NEET Mock Test - 3 - Question 6
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Two springs of spring constants 500 N m–1 and 500 N m–1 are stretched with force 100 N and 200 N respectively. They have potential energy in the ratio of
Detailed Solution for NEET Mock Test - 3 - Question 6
F = kx

F µ x

= 1/4

NEET Mock Test - 3 - Question 7
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An object has displacement from position vector

under the effect of a force The work done by this force will be
Detailed Solution for NEET Mock Test - 3 - Question 7

= 7 J

NEET Mock Test - 3 - Question 8
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A force of 1 N acts on a 1 kg mass for 1 second which is initially at rest. In another case 1 N force acts on 1 kg mass which is initially at rest and moves it through 1 m. The ratio of kinetic energy in the two cases is
Detailed Solution for NEET Mock Test - 3 - Question 8
v1 = u + at

= 1 m/s

= √2

= 1/2

NEET Mock Test - 3 - Question 9
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Two masses of 1 kg each move towards each other with speed 4 m/s and 2 m/s collide and stick together. The final kinetic energy of the system will be
Detailed Solution for NEET Mock Test - 3 - Question 9
By conservation of linear momentum

NEET Mock Test - 3 - Question 10
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An X-ray tube is operated at a constant potential difference and it is required to get X-ray of wave length not less than 0.2 nanometre. Then, the potential difference in kV is (h = 6.63 × 10-34Js, e = 1.6 × 10-19 C, c = 3 × 108 m/s)
Detailed Solution for NEET Mock Test - 3 - Question 10
Given: Minimum wavelength of X-ray

λ = 0.2 x 10-9m and h = 6.63 x 10-34 Js,

e = 1.6 x 10-19 coulomb

and c = 3 x 108 m/s

The minimum wavelength of continuous

X-ray spectrum

⇒

NEET Mock Test - 3 - Question 11
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The wavelength of the first line of Lyman series for hydrogen atom is equal to that of the second line of Balmer series for a hydrogen like ion. The atomic number Z of hydrogen like ion is
Detailed Solution for NEET Mock Test - 3 - Question 11
The wavelength of the first line of Lyman series for hydrogen atom is

The wavelength of the second line of Balmer series for hydrogen like ion is

According to question λ = λ’

or Z2 = 4 or Z = 2

NEET Mock Test - 3 - Question 12
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Given that the abundance of isotopes 54Fe, 56Fe and 57Fe are 5 %, 90 % and 5 % respectively, what is the atomic mass of Fe?
Detailed Solution for NEET Mock Test - 3 - Question 12
From relative abundance,

Atomic mass average

NEET Mock Test - 3 - Question 13
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Which of the following is a redox reaction?
Detailed Solution for NEET Mock Test - 3 - Question 13
The oxidation states show a change only in reaction (Zn + 2AgCN ⟶ 2Ag + Zn(CN)2).

Here, Zn is oxidised to Zn+2 and silver is reduced.

NEET Mock Test - 3 - Question 14
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The wavelength associated with a golf ball weighing 200g and moving at a speed of 5m/h is of the order:
Detailed Solution for NEET Mock Test - 3 - Question 14

Calculating the Wavelength

- Given values:
- Mass of golf ball (m) = 200g = 0.2 kg
- Speed of golf ball (v) = 5 m/s

- We can calculate the wavelength using the de Broglie wavelength formula:
- Wavelength (λ) = h / mv
where h is the Planck's constant (6.626 x 10^-34 m^2 kg / s)

- Substituting the values:
- λ = (6.626 x 10^-34) / (0.2 x 5)
- λ = 6.626 x 10^-34 / 1
- λ = 6.626 x 10^-34 m

Conclusion:
The wavelength associated with a golf ball weighing 200g and moving at a speed of 5 m/s is of the order of 10^-34 m, which is closest to option D: 10-30 m.

NEET Mock Test - 3 - Question 15
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on mercuration-demercuration produces the major product :
Detailed Solution for NEET Mock Test - 3 - Question 15

Rearrangement of carbocation formed is not possible due to formation of cyclic non-classical carbocation

NEET Mock Test - 3 - Question 16
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In a saturated solution of the sparingly soluble electrolyte AgIO3 (molecular mass = 283), the equilibrium which sets in is AgIO3 (s) ⇌ Ag+ (aq)+IO−3 (aq).

If the solubility product constant Ksp of AgIO3 at a given temperature is 1.0 × 10−8, what is the mass of AgIO3 in 100 mL of its saturated solution?
Detailed Solution for NEET Mock Test - 3 - Question 16

NEET Mock Test - 3 - Question 17
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Statement A: The elements Z = 117 belongs to chalcogen family and the electronic configuration would be [Rn] 5f146d107s27p4.

Statement B: The element with Z = 120 belongs to Group 2 (alkaline earth metals), and the electronic configuration would be [Uuo]8s2
Detailed Solution for NEET Mock Test - 3 - Question 17
Element with atomic number II7 belongs to halogen family.

The element with Z = 117, would belong to the halogen family (Group 17) and the electronic configuration would be [Rn] 5f146d107s27p5.

The element with Z = 120, will be placed in Group 2 (alkaline earth metals), and will have the electronic configuration [Uuo]8s2.

The name of the two elements are Ununseptium(Uus) and unbinilium(ubn)

NEET Mock Test - 3 - Question 18
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What is the food material in the members of class Rhodophyceae?
Detailed Solution for NEET Mock Test - 3 - Question 18
Algae are classified into three main classes, Chlorophyceae, Phaeophyceae, and Rhodophyceae. The basic criteria that are used to classify algae include

A. Nature of pigment present in the organism (like Chlorophyll-a and chlorophyll-d are present in Rhodophyceae members and no chlorophyll-b)

B. Nature of cell wall present in the organism (like Cellulosic cell wall is found in Chlorophyceae members, whereas Algin, Cellulose is found in Phaeophyceae).

C. Presence of flagella in the gametes of the organisms. Rhodophyceae members do not possess flagella in their gametes. Chlorophyceae has 2, equal, whiplash-like flagella.

D. Nature of stored food present in the organism, like Laminarin and Mannitol is present in Phaeophyceae members (as in Sargassum). Stored food in Rhodophyceae is Floridean starch.

NEET Mock Test - 3 - Question 19
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A. Aerobic respiration takes place in the matrix as well as inner membrane of mitochondria.

B. Pyruvate is converted into acetyl CoA before entering into mitochondria.

Read the above statements and choose the correct option.
Detailed Solution for NEET Mock Test - 3 - Question 19
Pyruvate is converted into acetyl CoA via link reaction that occur in mitochondrial matrix.
NEET Mock Test - 3 - Question 20
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Match the columns and select the correct option.
Detailed Solution for NEET Mock Test - 3 - Question 20
  • a. ABA → (iv) Carotenoids
  • b. Gibberellin → (iii) Terpenes
  • c. Auxin → (i) Indole compound
  • d. Cytokinin → (ii) Adenine derivative
NEET Mock Test - 3 - Question 21
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Match the following columns.
Detailed Solution for NEET Mock Test - 3 - Question 21
Scavengers - Consumers of dead bodes

Parasites - Consumers that feed on a small part of a living being

Producers - Autotrophs

Phagotrophs - Heterotrophs

NEET Mock Test - 3 - Question 22
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Application of minute quantity of which of the following to leaves reduces transpiration to a great extent through partial closure of stomata?
Detailed Solution for NEET Mock Test - 3 - Question 22
This is the correct option. Application of minute quantity of abscisic acid to leaves reduces transpiration to a great extent through partial closure of stomata. It conserves water and reduces the requirement of irrigation.
NEET Mock Test - 3 - Question 23
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Match column I with column II and select the correct option from the codes given below.
Detailed Solution for NEET Mock Test - 3 - Question 23
Fibrinogen is a plasma protein, which is also a blood clotting factor. It is a glycoprotein made in the liver. During any injury, it is converted by thrombin into fibrin and then to a fibrin-based clot. These fibrin clots then occlude the damaged blood vessel stopping further bleeding.

Globulins are globular proteins produced by the liver, which function as antibodies and involved in the defence mechanisms of the body.

Albumin is the smallest and most abundant serum protein, which is responsible for maintaining the osmotic pressure of blood.

NEET Mock Test - 3 - Question 24
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Which of the following hormone levels will cause release of ovum (ovulation) from the Graafian follicle?
Detailed Solution for NEET Mock Test - 3 - Question 24
The elevated estrogen levels act as a positive feedback mechanism by stimulating the anterior lobe of the pituitary to secrete luteinizing (LH) hormone, which initiates the next stage of the menstrual cycle. Rapid secretion of LH leading to its maximum level during the mid-cycle called LH surge induces the rupture of Graafian follicle and thereby the release of an ovum (ovulation).
NEET Mock Test - 3 - Question 25
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Choose the incorrect statement from the following.

a. 12 pairs of ribs are present.

b. Ribs dorsally articulate with sternum and ventrally with the vertebral column.

c. Ribs are not bicephalic.

d. Ribs are attached with sternum with the help of hyaline cartilage.
Detailed Solution for NEET Mock Test - 3 - Question 25
Statements 'b' and 'c' are incorrect. There are 12 pairs of ribs. Each rib is a thin flat bone connected dorsally to the vertebral column and ventrally to the sternum. It has two articulation surfaces on its dorsal end and is hence called bicephalic. The articulation occurs with the help of hyaline cartilage.
NEET Mock Test - 3 - Question 26
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All are correct with respect to the Human Genome Project, except
Detailed Solution for NEET Mock Test - 3 - Question 26
The major findings of human genome project (HGP) are:

  1. The human genome contains 3164.7 million bp.

  2. The average gene consists of 3000 bases, but sizes vary greatly, with the largest known human gene is dystrophin with 2.4 million bases.

  3. Only less than 2 % of the genome codes for proteins.

  4. Chromosome 1 has maximum number of genes (2968), and the Y has the fewest (231).

  5. The total number of genes is estimated at 30,000–much lower than previous estimates of 80,000 to 1,40,000 genes. Almost all (99.9 per cent) nucleotide bases are exactly the same in all people.

  6. The functions are unknown for over 50 per cent of the discovered genes.

  7. Scientists have identified about 1.4 million locations where single-base DNA differences (SNPs – single nucleotide polymorphism) occur in humans. This information helps the processes of finding chromosomal locations for disease-associated sequences and tracing human history.

NEET Mock Test - 3 - Question 27
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Read the following sentences and select the correct option with all true statements.

a. During parturition, oxytocin induces intense contractions in the uterus.

b. After parturition oxytocin stimulates milk ejection.

c. The labour pain during childbirth is due to oxytocin.

d. Oxytocin secrete from placenta and ovary.
Detailed Solution for NEET Mock Test - 3 - Question 27
A, B, and C statements are correct. But statement D is wrong because Oxytocin is produced in the hypothalamus and is secreted into the bloodstream by the posterior pituitary gland.
NEET Mock Test - 3 - Question 28
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Which of the following features belong(s) to Ctenophora?
Detailed Solution for NEET Mock Test - 3 - Question 28
Ctenophora (commonly known as comb jellies) comprise a phylum of invertebrate animals that live in marine waters worldwide. They are notable for the groups of cilia they use for swimming (commonly referred to as "combs"), and they are the largest animals to swim with the help of cilia. Lasso cells are embedded in the tentacles of the organism. Each has two protruding filaments, one straight and one spiralled, with adhesive heads used to catch prey.
NEET Mock Test - 3 - Question 29
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The nerve centres which control the body temperature and the urge for eating are contained in:
Detailed Solution for NEET Mock Test - 3 - Question 29
Hypothalamus is the region of the forebrain in the floor of the third ventricle, linked with the thalamus above and the pituitary gland below. It contains several important centres controlling body temperature, thirst, hunger, and eating, water balance and sexual function.
NEET Mock Test - 3 - Question 30
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Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?
Detailed Solution for NEET Mock Test - 3 - Question 30
Physiological barriers provide the crucial first line of defense against pathogens. These include tears, saliva, acidic pH in stomach, bile in intestine. The enzyme lysozyme is found in tears and saliva which inhibits the synthesis of peptidoglycan present in the cell wall of microorganisms especially eubacteria.
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