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NEET Preparation
122 followers study24x7 16 May 2025 10:09 AM study24x7 study24x7

Which of the following is not a redox reaction?

A

Zn + CuSO₄ → ZnSO₄ + Cu

B

2H₂ + O₂ → 2H₂O

C

NaOH + HCl → NaCl + H₂O

D

2FeCl₃ → 2FeCl₂ + Cl₂

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NEET Preparation
122 followers study24x7 16 May 2025 10:08 AM study24x7 study24x7

In the reaction:

Fe²⁺ → Fe³⁺ + e⁻
This is an example of:

A

Reduction

B

Oxidation

C

Neutralization

D

Disproportionation

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NEET Preparation
122 followers study24x7 16 May 2025 10:07 AM study24x7 study24x7

Which of the following is always reduced in a redox reaction?

A

Oxidizing agent

B

Reducing agent

C

Acid

D

Base

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NEET Preparation
122 followers study24x7 15 May 2025 10:25 AM study24x7 study24x7

The resistance of a conductor is directly proportional to:

A

Length

B

Cross-sectional area

C

Temperature

D

Both A and C

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NEET Preparation
122 followers study24x7 15 May 2025 10:19 AM study24x7 study24x7

Ohm’s law is expressed as:

A

V = IR

B

V = I/R

C

V = R/I

D

R = VI

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NEET Preparation
122 followers study24x7 15 May 2025 10:17 AM study24x7 study24x7

SI unit of electric current is:

A

Volt

B

Ampere

C

Ohm

D

Coulomb

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NEET Preparation
122 followers study24x7 14 May 2025 10:29 AM study24x7 study24x7

AIDS is caused by a:

A

Bacteria

B

Fungus

C

Virus

D

Protozoan

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NEET Preparation
122 followers study24x7 14 May 2025 10:28 AM study24x7 study24x7

Which immune cells produce antibodies?

A

T-cells

B

B-cells

C

RBCs

D

Platelets

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NEET Preparation
122 followers study24x7 14 May 2025 10:27 AM study24x7 study24x7

Which of the following is a bacterial disease?

A

Malaria

B

Influenza

C

Typhoid

D

Ringworm

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NEET Preparation
122 followers study24x7 13 May 2025 11:54 AM study24x7 study24x7

In a solution, the component present in the highest amount is called:

A

Solute

B

Colloid

C

Dispersed phase

D

Solvent

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NEET Preparation
122 followers study24x7 13 May 2025 11:53 AM study24x7 study24x7

Which colligative property is used to find molar mass?

A

Boiling point elevation

B

Vapour pressure

C

Colour

D

Density

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NEET Preparation
122 followers study24x7 13 May 2025 11:53 AM study24x7 study24x7

A solution in which no more solute can be dissolved at a given temperature is:

A

Saturated

B

Unsaturated

C

Supersaturated

D

Dilute

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NEET Preparation
122 followers study24x7 12 May 2025 11:36 AM study24x7 study24x7

Weight of a body on the moon is:

A

Same as Earth

B

Half of Earth

C

One-sixth of Earth

D

Twice of Earth

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NEET Preparation
122 followers study24x7 12 May 2025 11:34 AM study24x7 study24x7

The gravitational force between two bodies is:

A

Directly proportional to square of distance

B

Independent of mass

C

Inversely proportional to square of distance

D

Independent of distance

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NEET Preparation
122 followers study24x7 12 May 2025 11:30 AM study24x7 study24x7

The acceleration due to gravity on the surface of Earth is approximately:

A

8.9 m/s²

B

9.8 m/s²

C

10.8 m/s²

D

9.0 m/s²

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NEET Preparation
122 followers study24x7 09 May 2025 11:16 AM study24x7 study24x7

Double fertilization is a characteristic of:

A

Bryophytes

B

Gymnosperms

C

Angiosperms

D

Algae

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NEET Preparation
122 followers study24x7 09 May 2025 11:16 AM study24x7 study24x7

Which part of the flower develops into the fruit?

A

Ovule

B

Ovary

C

Style

D

Stigma

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NEET Preparation
122 followers study24x7 09 May 2025 10:22 AM study24x7 study24x7

The process of formation of male gametes is called:

A

Oogenesis

B

Spermatogenesis

C

Fertilization

D

Implantation

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NEET Preparation
122 followers study24x7 08 May 2025 10:46 AM study24x7 study24x7

Which of the following shows hydrogen bonding in the liquid state?

A

HCl

B

CH₄

C

NH₃

D

NaCl

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NEET Preparation
122 followers study24x7 08 May 2025 10:44 AM study24x7 study24x7

Which gas deviates most from ideal behavior?

A

He

B

N₂

C

CO₂

D

H₂

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