datavorous/entrance-exam-dataset huggingface dataset:
What is the "long form" of the Periodic Table based on, as mentioned in the paragraph?

Options:
A Chemical reactions
B Atomic mass
C Valence
D Electronic configuration

The correct answer is:
Electronic configuration

Solution:
The paragraph states that the modern version, the "long form" of the Periodic Table, is based on the electronic configuration of elements.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
What is the lowest category in the taxonomic classification of all known organisms?

Options:
A Kingdom
B Phylum or division (for plants)
C Class
D Species

The correct answer is:
Species

Solution:
All organisms, including those in the plant and animal kingdoms, have species as the lowest category in their taxonomic classification.

Topic: Biology, The Living World, NEET
What is the lowest common oxidation state of the transition metals?

Options:
A +1
B +2
C +3
D +4

The correct answer is:
+2

Solution:
The lowest common oxidation state of these metals is +2.

Topic: Chemistry, d and f Block Elements, NEET
What is the lowest energy of the spectral line emitted by the hydrogen atom in the Lyman series?

(h= Planck's constant, c= velocity of light, R= Rydberg's constant).

Options:
A 5hcR36
B 4hcR3
C 3hcR4
D 7hcR144

The correct answer is:
3hcR4

Solution:
We know that,
âE=hcÂ·R1n12-1n22
For lowest energy, of the spectral line in Lyman series, n1=1, n2=2
Hence,
âE=hc.R112-122
âE=3hcR4

Topic: Chemistry, Structure of Atom, NEET
What is the lowest region of the atmosphere where human beings and other organisms live called?

Options:
A Stratosphere
B Troposphere
C Mesosphere
D Thermosphere

The correct answer is:
Troposphere

Solution:
The troposphere is the lowest region of the atmosphere, extending up to approximately 10 km from sea level, where humans and other organisms reside.

Topic: Chemistry, Environmental Chemistry, NEET
What is the lowest value of n that allows g orbital to exist?

Options:
A 6
B 7
C 4
D 5

The correct answer is:
5

Solution:
For g orbital, value of 'l' is 4.
(s=0,p=1,d=2,f=3,g=4)
Since l=0â to nâ1 , n should be atleast 5.

Topic: Chemistry, Structure of Atom, NEET
What is the lowest value of n that allows g orbitals to exist?

Options:
A n=4
B n=5
C n=6
D n=7

The correct answer is:
n=5

Solution:
Correct Option is : (B)
n=5

Topic: Chemistry, Structure of Atom, NEET
What is the magnetic behavior of diamagnetic substances in a magnetic field?

Options:
A They become permanent magnets.
B They are weakly attracted to the magnetic field.
C They are weakly repelled by the magnetic field.
D They are strongly attracted to the magnetic field.

The correct answer is:
They are weakly repelled by the magnetic field.

Solution:
Diamagnetic substances are weakly repelled by a magnetic field.

Topic: Chemistry, Solid State, NEET
What is the magnetic field (B) at a particular point in free space and time where an electromagnetic wave with a frequency of 25 MHz travels along the x-direction, and the electric field (E) at that point is 6.3 $\hat{j}$ V/m?

Options:
A 1.4 × 10–9$\hat{i}$ T
B 2.1 × 10–8$\hat{k}$ T
C 3.5 × 10–8$\hat{j}$ T
D 4.2 × 10–7$\hat{k}$ T

The correct answer is:
2.1 × 10–8$\hat{k}$ T

Solution:
Correct Option is : (B)
2.1 × 10–8$\hat{k}$ T

Topic: Chemistry, Electromagnetic Waves, NEET
What is the magnetic field strength at the center of a 100-turn closely wound circular coil with a radius of 10 cm, carrying a current of 3.2 A?

Options:
A 4 × 10-3T
B 2 × 10-3T
C 8 × 10-3T
D 1 × 10-3T

The correct answer is:
2 × 10-3T

Solution:
Correct Option is : (B)
2 × 10-3T

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the magnetic field strength on the y-axis at a distance of 0.5 m from an element Δl = Δx$\hat{i}$placed at the origin and carrying a large current I = 10 A (Fig. 4.8), where Δx = 1 cm?

Options:
A 2 × 10–8T
B 3 × 10–8T
C 4 × 10–8T
D 5 × 10–8T

The correct answer is:
4 × 10–8T

Solution:
Correct Option is : (C)
4 × 10–8T

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the magnetic flux passing through coil A when no current passes through it and a current of 1 A flows through coil B, given that there are two coils A and B separated by some distance, and a current of 2 A through coil A results in a magnetic flux of 10-2 Wb passing through coil B?

Options:
A 2×10^-3 Wb
B 5×10^-3 Wb
C 1×10^-2 Wb
D 2×10^-2 Wb

The correct answer is:
5×10^-3 Wb

Solution:
Correct Option is : (B)
5×10^-3 Wb

Topic: Chemistry, Electromagnetic Induction, NEET
What is the magnetic force on a 3.0 cm wire carrying a current of 10 A when it is placed inside a solenoid perpendicular to its axis with a magnetic field of 0.27 T?

Options:
A 8.1 × 10–2N
B 0.000081 N
C 0.81 N
D 8.1 × 10–3N

The correct answer is:
8.1 × 10–2N

Solution:
Correct Option is : (A)
8.1 × 10–2N

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the magnetic induction at a point on the axis O, which is at a distance R from each wire, for five long wires A, B, C, D, and E, arranged to form edges of a pentagonal prism, all carrying current I out of the plane of the paper?

Options:
A I/R
B 2I/R
C 3I/R
D Zero

The correct answer is:
Zero

Solution:
Correct Option is : (D)
Zero

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the magnetic moment associated with a closely wound solenoid of 800 turns, an area of cross-section 2.5 × 10–4m², and a current of 3.0 A?

Options:
A 0.60 J/T
B 1.20 J/T
C 0.30 J/T
D -0.60 J/T

The correct answer is:
0.60 J/T

Solution:
Correct Option is : (A)
0.60 J/T

Topic: Chemistry, Magnetic Properties of Matter, NEET
What is the magnetic moment associated with a closely wound solenoid with 2000 turns, a cross-sectional area of 1.6 × 10-4m², and carrying a current of 4.0 A, when it is suspended through its center and allowed to turn in a horizontal plane?

Options:
A 0.64 A m²
B 1.28 A m²
C 2.56 A m²
D 3.84 A m²

The correct answer is:
1.28 A m²

Solution:
Correct Option is : (B)
1.28 A m²

Topic: Chemistry, Magnetic Properties of Matter, NEET
What is the magnetic moment associated with each unpaired electron in paramagnetic substances?

Options:
A 0 Bohr magnetons (BM)
B 1.73 Bohr magnetons (BM)
C 2 Bohr magnetons (BM)
D 3.46 Bohr magnetons (BM)

The correct answer is:
1.73 Bohr magnetons (BM)

Solution:
A single unpaired electron has a magnetic moment of 1.73 Bohr magnetons (BM).

Topic: Chemistry, d and f Block Elements, NEET
What is the magnetic moment of a divalent ion in aqueous solution if its atomic number is 25?

Options:
A 5.92BM
B 4.87BM
C 2.54BM
D 1.69BM

The correct answer is:
5.92BM

Solution:
Correct Option is : (A)
5.92BM

Topic: Chemistry, d and f Block Elements, NEET
What is the magnetic moment of a divalent ion in aqueous solution with an atomic number of 25?

Options:
A 0.92 Bohr magnetons (BM)
B 5.92 Bohr magnetons (BM)
C 10.92 Bohr magnetons (BM)
D 25.92 Bohr magnetons (BM)

The correct answer is:
5.92 Bohr magnetons (BM)

Solution:
With an atomic number of 25, a divalent ion in aqueous solution will have a magnetic moment of 5.92 Bohr magnetons (BM) using the spin only formula.

Topic: Chemistry, d and f Block Elements, NEET
What is the magnetisation current IMof a permanent magnet in the shape of a thin cylinder with a length of 10 cm and a magnetic field intensity of M = 106A/m?

Options:
A 105A
B 103A
C 107A
D 1010A

The correct answer is:
105A

Solution:
Correct Option is : (A)
105A

Topic: Chemistry, Magnetic Properties of Matter, NEET
What is the magnification produced by a converging lens with a focal length of 9 cm when viewing a card sheet divided into squares, each of size 1 mm², at a distance of 9 cm through a magnifying glass held close to the eye?

Options:
A 2
B 5
C 7
D 10

The correct answer is:
10

Solution:
Correct Option is : (D)
10

Topic: Chemistry, Ray Optics, NEET
What is the magnifying power of a small telescope with an objective lens of focal length 140cm and an eyepiece of focal length 5.0cm when it is in normal adjustment, i.e., when the final image is at infinity?

Options:
A 28
B 35
C 25
D 42

The correct answer is:
28

Solution:
Correct Option is : (A)
28

Topic: Chemistry, Ray Optics, NEET
What is the magnifying power of a small telescope with an objective lens of focal length 140cm and an eyepiece of focal length 5.0cm when the final image is formed at the least distance of distinct vision (25cm)?

Options:
A 20
B 30
C 33.6
D 42

The correct answer is:
33.6

Solution:
Correct Option is : (C)
33.6

Topic: Chemistry, Ray Optics, NEET
What is the magnifying power of a small telescope with an objective lens of focal length 144cm and an eyepiece of focal length 6.0cm?

Options:
A 24
B 4
C 6
D 36

The correct answer is:
24

Solution:
Correct Option is : (A)
24

Topic: Chemistry, Ray Optics, NEET
What is the magnitude and direction of acceleration for a stone tied to the end of a 80 cm long string, whirling in a horizontal circle with a constant speed, if the stone makes 14 revolutions in 25 s?

Options:
A 11.1 m/s² towards the center of the circle
B 11.1 m/s² away from the center of the circle
C 9.9 m/s² towards the center of the circle
D 9.9 m/s² away from the center of the circle

The correct answer is:
9.9 m/s² towards the center of the circle

Solution:
Correct Option is : (C)
9.9 m/s² towards the center of the circle

Topic: Chemistry, Motion In Two Dimensions, NEET
What is the magnitude and direction of the acceleration of a 5 kg body acted upon by two perpendicular forces of 8 N and 6 N?

Options:
A 2 m/s² directed at 37 ° of the 8 N force.
B 2 m/s² directed at 37 ° of the 6 N force.
C 10 m/s² directed at 37 ° of the 8 N force.
D 10 m/s² directed at 37 ° of the 6 N force.

The correct answer is:
2 m/s² directed at 37 ° of the 8 N force.

Solution:
Correct Option is : (A)
2 m/s² directed at 37 ° of the 8 N force.

Topic: Chemistry, Laws of Motion, NEET
What is the magnitude and direction of the force acting on a 3.0 kg body that changes its speed from 2.0 m/s to 3.5 m/s in 25 seconds with unchanged motion direction?

Options:
A 0.18 N in the same direction as motion
B 0.18 N in the opposite direction of motion
C 0.30 N in the same direction as motion
D 0.30 N in the opposite direction of motion

The correct answer is:
0.18 N in the same direction as motion

Solution:
Correct Option is : (A)
0.18 N in the same direction as motion

Topic: Chemistry, Laws of Motion, NEET
What is the magnitude and direction of the force on the helicopter due to the surrounding air when a helicopter of mass 2000 kg rises with a vertical acceleration of 15 m/s² and the total mass of the crew and passengers is 500 kg? (Given: g = 10 m/s²)

Options:
A 5 × 104N, upward
B 6.25 × 104N, downward
C 6.25 × 104N, upward
D 7.5 × 104N, downward

The correct answer is:
6.25 × 104N, upward

Solution:
Correct Option is : (C)
6.25 × 104N, upward

Topic: Chemistry, Laws of Motion, NEET
What is the magnitude and direction of the magnetic field 1.5 meters below a horizontal overhead power line carrying a current of 90 A in the east-to-west direction?

Options:
A 1.2 × 10–5T, towards north
B 1.2 × 10–5T, towards south
C 2.4 × 10–5T, towards east
D 2.4 × 10–5T, towards west

The correct answer is:
1.2 × 10–5T, towards south

Solution:
Correct Option is : (B)
1.2 × 10–5T, towards south

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the magnitude and direction of the magnetic field (B) at a point 2.5 meters east of a long straight wire in the horizontal plane carrying a current of 50 A in the north to south direction?

Options:
A 2 × 10–6T, vertical up
B 4 × 10–6T, vertical up
C 2 × 10–6T, vertical down
D 4 × 10–6T, vertical down

The correct answer is:
4 × 10–6T, vertical up

Solution:
Correct Option is : (B)
4 × 10–6T, vertical up

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the magnitude and direction of the magnetic field produced by a short bar magnet with a magnetic moment of 0.48 J T-1at a distance of 10 cm from the center of the magnet on the axis?

Options:
A 0.24 G along N-S direction
B 0.48 G along S-N direction
C 0.96 G along N-S direction
D 1.92 G along S-N direction

The correct answer is:
0.96 G along N-S direction

Solution:
Correct Option is : (C)
0.96 G along N-S direction

Topic: Chemistry, Magnetic Properties of Matter, NEET
What is the magnitude and direction of the net electric force acting on a 1 mC charge placed at the center of a square ABCD with side length 10 cm, where four point charges qA = 2 mC, qB = -5 mC, qC = 2 mC, and qD = -5 mC are located at the corners of the square?

Options:
A 0 N, no net force
B 0 N, but there is a net torque
C A non-zero force along one diagonal of the square
D A non-zero force along the other diagonal of the square

The correct answer is:
0 N, no net force

Solution:
Correct Option is : (A)
0 N, no net force

Topic: Chemistry, Electrostatics, NEET
What is the magnitude and direction of the net force acting on a 0.1 kg stone just after it is dropped from the window of a stationary train?

Options:
A There is no net force acting on it.
B The net force is downwards.
C The net force is upwards.
D The net force is to the side.

The correct answer is:
The net force is downwards.

Solution:
Correct Option is : (B)
The net force is downwards.

Topic: Chemistry, Laws of Motion, NEET
What is the magnitude of the average velocity of a man who walks from his home to a market 2.5 km away with a speed of 5 km/h, but upon finding the market closed, instantly turns and walks back home with a speed of 7.5 km/h?

Options:
A 0 km/h
B 7.5 km/h
C 5 km/h
D 6.25 km/h

The correct answer is:
0 km/h

Solution:
Correct Option is : (A)
0 km/h

Topic: Chemistry, Motion In One Dimension, NEET
What is the magnitude of the counter torque that must be applied to prevent the coil from turning when a circular coil of 30 turns and radius 8.0 cm, carrying a current of 6.0 A, is suspended vertically in a uniform horizontal magnetic field of magnitude 1.0 T, where the field lines make an angle of 60° with the normal of the coil?

Options:
A 2.4 Nm
B 3.1 Nm
C 4.8 Nm
D 6.2 Nm

The correct answer is:
3.1 Nm

Solution:
Correct Option is : (B)
3.1 Nm

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the magnitude of the current induced in the circular coil, which has a radius of 10 cm, 500 turns, and a resistance of 2 W, when it is rotated about its vertical diameter through 180° in 0.25 s, with its plane perpendicular to the horizontal component of the Earth's magnetic field (3.0 × 10–5T)?

Options:
A 1.9 × 10–3A
B 2.2 × 10–3A
C 1.5 × 10–3A
D 2.0 × 10–3A

The correct answer is:
1.9 × 10–3A

Solution:
Correct Option is : (A)
1.9 × 10–3A

Topic: Chemistry, Electromagnetic Induction, NEET
What is the magnitude of the displacement vector for each of the three girls who start skating from point P on a circular ice ground of radius 200 m and reach point Q, which is diametrically opposite to P, following different paths as shown in Fig. 3.19? For which girl is this magnitude equal to the actual length of the path skated?

Options:
A The magnitude is the same for all three girls.
B Girl 1 has the same magnitude as the actual length of the path skated.
C Girl 2 has the same magnitude as the actual length of the path skated.
D Girl 3 has the same magnitude as the actual length of the path skated.

The correct answer is:
Girl 2 has the same magnitude as the actual length of the path skated.

Solution:
Correct Option is : (C)
Girl 2 has the same magnitude as the actual length of the path skated.

Topic: Chemistry, Motion In Two Dimensions, NEET
What is the magnitude of the electromotive force (emf) induced in a circular coil with a radius of 10 cm, 500 turns, and resistance of 2 ohms when it is rotated about its vertical diameter through 180° in 0.25 seconds, with its plane perpendicular to the horizontal component of the Earth's magnetic field (3.0 × 10–5T)?

Options:
A 3.8 × 10–4V
B 3.8 × 10–3V
C 3.8 × 10–2V
D 3.8 × 10–1V

The correct answer is:
3.8 × 10–3V

Solution:
Correct Option is : (B)
3.8 × 10–3V

Topic: Chemistry, Electromagnetic Induction, NEET
What is the magnitude of the equal number of positive and negative charges in a paisa coin made up of only Al, given that it is electrically neutral and contains equal amounts of positive and negative charges?

Options:
A 15.2 kC
B 22.5 kC
C 34.8 kC
D 42.1 kC

The correct answer is:
34.8 kC

Solution:
Correct Option is : (C)
34.8 kC

Topic: Chemistry, Electrostatics, NEET
What is the magnitude of the induced current in a square loop with a side length of 10 cm and resistance of 0.5 ohms, placed vertically in the east-west plane, when a uniform magnetic field of 0.10 T is decreased to zero in 0.70 s at a steady rate in the north-east direction?

Options:
A 1 mA
B 2 mA
C 3 mA
D 4 mA

The correct answer is:
2 mA

Solution:
Correct Option is : (B)
2 mA

Topic: Chemistry, Electromagnetic Induction, NEET
What is the magnitude of the induced electromotive force (emf) in a square loop with a side length of 10 cm and resistance of 0.5 ohms when a uniform magnetic field of 0.10 T is decreased to zero in 0.70 s at a steady rate in the north-east direction?

Options:
A 1.0 mV
B 2.0 mV
C 0.5 mV
D 0.25 mV

The correct answer is:
1.0 mV

Solution:
Correct Option is : (A)
1.0 mV

Topic: Chemistry, Electromagnetic Induction, NEET
What is the magnitude of the magnetic field at the center of a tightly wound 100-turn coil with a radius of 10 cm, carrying a current of 1 A?

Options:
A 2.09 × 10-4T
B 4.99 × 10-4T
C 8.57 × 10-4T
D 6.28 × 10-4T

The correct answer is:
6.28 × 10-4T

Solution:
Correct Option is : (D)
6.28 × 10-4T

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the magnitude of the magnetic field (B) at a point 20 cm from a long straight wire carrying a current of 35 A?

Options:
A 7 × 10–4T
B 3.5 × 10–5T
C 1.75 × 10–5T
D 17.5 × 10–5T

The correct answer is:
3.5 × 10–5T

Solution:
Correct Option is : (B)
3.5 × 10–5T

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the magnitude of the magnetic field B at the center of a circular coil of wire consisting of 100 turns, each of radius 8.0 cm, carrying a current of 0.40 A?

Options:
A 1.6 × 10–3T
B 3.1 × 10–4T
C 6.2 × 10–4T
D 4.0 × 10–5T

The correct answer is:
3.1 × 10–4T

Solution:
Correct Option is : (B)
3.1 × 10–4T

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the magnitude of the magnetic field (in Tesla) required to suspend a straight wire of mass 200 g and length 1.5 m, carrying a current of 2 A, in mid-air?

Options:
A 0.65 Tesla
B 0.45 Tesla
C 1.20 Tesla
D 0.25 Tesla

The correct answer is:
0.65 Tesla

Solution:
Correct Option is : (A)
0.65 Tesla

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the magnitude of the magnetic field inside a solenoid with a length of 0.5 m, a radius of 1 cm, and made up of 500 turns carrying a current of 5 A?

Options:
A 6.28× 10-3T
B 5.09 × 10-3T
C 10.0 × 10-3T
D 12.5 × 10-3T

The correct answer is:
6.28× 10-3T

Solution:
Correct Option is : (A)
6.28× 10-3T

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the magnitude of the magnetic force per unit length on a wire carrying an 8 A current at a 30º angle to the direction of a uniform magnetic field of 0.15 T?

Options:
A 0.6 N/m
B 0.3 N/m
C 1.2 N/m
D 0.15 N/m

The correct answer is:
0.6 N/m

Solution:
Correct Option is : (A)
0.6 N/m

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the magnitude of the magnetic moment of a short bar magnet that experiences a torque of 4.5 × 10⁻² J when its axis is at 30° with a uniform external magnetic field of 0.25 T?

Options:
A 0.18 JT
B 0.36 JT
C 0.72 JT
D -0.72 JT

The correct answer is:
0.36 JT

Solution:
Correct Option is : (B)
0.36 JT

Topic: Chemistry, Magnetic Properties of Matter, NEET
What is the magnitude of the torque experienced by a square coil, with a side length of 10 cm, 20 turns, and carrying a current of 12 A, when it is suspended vertically and the normal to its plane makes a 30º angle with respect to a uniform horizontal magnetic field of magnitude 0.80 T?

Options:
A 0.64 N m
B 0.80 N m
C 0.96 N m
D 1.20 N m

The correct answer is:
0.96 N m

Solution:
Correct Option is : (C)
0.96 N m

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the magnitude of the torque on the closely wound solenoid with 800 turns and a cross-sectional area of 2.5 × 10–4m², carrying a current of 3.0 A, when its axis makes an angle of 30° with a uniform horizontal magnetic field of 0.25 T?

Options:
A 0.1 J
B 0.75 J
C 0.075 J
D 1.00 J

The correct answer is:
0.075 J

Solution:
Correct Option is : (C)
0.075 J

Topic: Chemistry, Magnetic Properties of Matter, NEET
What is the magnitude of torque acting on a particle moving in the xy-plane about the origin if its angular momentum is 4.0t kg m2 s-1?

Options:
A 8t3/2
B 4t
C 2t
D 32t

The correct answer is:
2t

Solution:
The angular momentum of a moving particle J=4t kg m2 s-1
Torque acting on a moving particle,
Ï=dJdt=ddt4t=4dtdt=412 t1/2-1
Ï=42t-1/2 N m=2t N m

Topic: Physics, Rotational Motion, NEET
What is the magnitude to the volume of the parallelepiped formed on the three vectors , a, b and c

Options:
A a.(b × c)
B a.(b × a)
C a.(b . c)
D a×(b × c)

The correct answer is:
a.(b × c)

Solution:
Correct Option is : (A)
a.(b × c)

Topic: Chemistry, Rotational Motion, NEET
What is the major cause of death among non-infectious diseases?

Options:
A Cancer
B AIDS
C Drug and alcohol abuse
D None of the above

The correct answer is:
Cancer

Solution:
Among non-infectious diseases, cancer is the major cause of death, not AIDS, drug and alcohol abuse, or other factors.

Topic: Biology, Human Health and Diseases, NEET
What is the major cause of Emphysema?

Options:
A Inflammation
B Difficulty in breathing causing wheezing
C Decreased respiratory surface
D Cigarette smoking

The correct answer is:
Cigarette smoking

Solution:
Emphysema is a chronic disorder in which alveolar walls are damaged due to which respiratory surface is decreased. One of the major causes of this is cigarette smoking.

Topic: Biology, Breathing and Exchange of Gases, NEET
What is the major cause of lung cancer identified?

Options:
A Chemical carcinogens
B Oncogenic viruses
C Cellular oncogenes
D Proto oncogenes

The correct answer is:
Chemical carcinogens

Solution:
The chemical carcinogens present in tobacco smoke have been identified as a major cause of lung cancer.

Topic: Biology, Human Health and Diseases, NEET
What is the major component of plasma?

Options:
A Water
B Proteins
C Fats
D Carbohydrates

The correct answer is:
Water

Solution:
90-92% of plasma is water.

Topic: Biology, Body Fluids and Circulation, NEET
What is the major component of waste water generated in cities and towns?

Options:
A Organic matter
B Human excreta
C Microbes
D Pathogenic matter

The correct answer is:
Human excreta

Solution:
A major component of waste water generated in cities and towns is human excreta, also known as municipal waste-water or sewage.

Topic: Biology, Microbes in Human Welfare, NEET
What is the major conduit for energy flow in an aquatic ecosystem?

Options:
A Grazing food chain
B Detritus food chain
C Photosynthetic food chain
D Omnivores food chain

The correct answer is:
Grazing food chain

Solution:
In an aquatic ecosystem, the grazing food chain is the major conduit for energy flow.

Topic: Biology, Ecosystem, NEET
What is the major constituent of the Earth's atmosphere among the noble gases?

Options:
A Helium
B Neon
C Argon
D Krypton

The correct answer is:
Argon

Solution:
Argon is the major constituent of the Earth's atmosphere among the noble gases.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
What is the major current use of chloroform?

Options:
A General anesthesia in surgery
B Production of R-22 refrigerant
C Cleaning agent for metals
D Flavoring agent in food

The correct answer is:
Production of R-22 refrigerant

Solution:
The major use of chloroform today is in the production of the freon refrigerant R-22.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET