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Q: Electrolysis uses electric current to drive a:

Correct Answer: B. chemical change. Electrolysis drives a chemical reaction using electrical energy.

Q: What is 25% of 780?

Correct Answer: B. 195. 25% of 780 = 195.

Q: Density is:

Correct Answer: B. mass ÷ volume. Density = mass/volume.

Q: The SI unit of power is:

Correct Answer: B. Watt. Power is measured in watts.

Q: An electrochemical cell converts chemical energy into:

Correct Answer: B. electrical energy. An electrochemical cell produces electrical energy from chemical reactions.

Q: The functional group in alcohols is:

Correct Answer: B. -OH. Alcohols contain the hydroxyl (-OH) group.

Q: The simplest hydrocarbon is:

Correct Answer: A. methane. Methane, CH4, is the simplest hydrocarbon.

Q: Rusting of iron requires oxygen and:

Correct Answer: B. moisture. Rusting needs oxygen and moisture.

Q: An atom has atomic number 9. Its number of protons is:

Correct Answer: A. 9. Atomic number equals the number of protons.

Q: A solution has pH 5. It is:

Correct Answer: A. acidic. A pH below 7 indicates an acidic solution.

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QID #1144507 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 11 Medium

Electrolysis uses electric current to drive a:

Correct Answer: B. chemical change
Electrolysis drives a chemical reaction using electrical energy.

Question: Electrolysis uses electric current to drive a:

A. spontaneous mechanical process

B. chemical change

C. nuclear change

D. gravitational change

Correct Answer: B. chemical changeExplanation: Electrolysis drives a chemical reaction using electrical energy.

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QID #1144506 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 27 Medium

What is 25% of 780?

Correct Answer: B. 195
25% of 780 = 195.

Question: What is 25% of 780?

A. 97

B. 195

C. 215

D. 585

Correct Answer: B. 195Explanation: 25% of 780 = 195.

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QID #1144505 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 26 Medium

Density is:

Correct Answer: B. mass ÷ volume
Density = mass/volume.

Question: Density is:

A. mass × volume

B. mass ÷ volume

C. volume ÷ mass

D. weight × area

Correct Answer: B. mass ÷ volumeExplanation: Density = mass/volume.

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QID #1144504 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 26 Medium

The SI unit of power is:

Correct Answer: B. Watt
Power is measured in watts.

Question: The SI unit of power is:

A. Joule

B. Watt

C. Newton

D. Volt

Correct Answer: B. WattExplanation: Power is measured in watts.

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QID #1144503 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 11 Medium

An electrochemical cell converts chemical energy into:

Correct Answer: B. electrical energy
An electrochemical cell produces electrical energy from chemical reactions.

Question: An electrochemical cell converts chemical energy into:

A. nuclear energy

B. electrical energy

C. sound only

D. mass

Correct Answer: B. electrical energyExplanation: An electrochemical cell produces electrical energy from chemical reactions.

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QID #1144502 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 11 Medium

The functional group in alcohols is:

Correct Answer: B. -OH
Alcohols contain the hydroxyl (-OH) group.

Question: The functional group in alcohols is:

A. -COOH

B. -OH

C. -CHO

D. -NH2

Correct Answer: B. -OHExplanation: Alcohols contain the hydroxyl (-OH) group.

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QID #1144501 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 11 Medium

The simplest hydrocarbon is:

Correct Answer: A. methane
Methane, CH4, is the simplest hydrocarbon.

Question: The simplest hydrocarbon is:

A. methane

B. ethane

C. ethene

D. benzene

Correct Answer: A. methaneExplanation: Methane, CH4, is the simplest hydrocarbon.

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QID #1144500 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 11 Medium

Rusting of iron requires oxygen and:

Correct Answer: B. moisture
Rusting needs oxygen and moisture.

Question: Rusting of iron requires oxygen and:

A. nitrogen

B. moisture

C. hydrogen

D. carbon dioxide only

Correct Answer: B. moistureExplanation: Rusting needs oxygen and moisture.

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QID #1144499 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 11 Medium

An atom has atomic number 9. Its number of protons is:

Correct Answer: A. 9
Atomic number equals the number of protons.

Question: An atom has atomic number 9. Its number of protons is:

A. 9

B. 10

C. 8

D. 15

Correct Answer: A. 9Explanation: Atomic number equals the number of protons.

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QID #1144498 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 11 Medium

A solution has pH 5. It is:

Correct Answer: A. acidic
A pH below 7 indicates an acidic solution.

Question: A solution has pH 5. It is:

A. acidic

B. basic

C. neutral

D. metallic

Correct Answer: A. acidicExplanation: A pH below 7 indicates an acidic solution.

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QID #1144497 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 26 Medium

140 C of charge passes a point in 6 s. Current is:

Correct Answer: A. 23.3333 A
Current I = Q/t.

Question: 140 C of charge passes a point in 6 s. Current is:

A. 23.3333 A

B. 840 A

C. 146 A

D. 0.0428571 A

Correct Answer: A. 23.3333 AExplanation: Current I = Q/t.

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QID #1144496 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 26 Medium

A 3 kg body moves at 6 m/s. Its kinetic energy is:

Correct Answer: A. 54 J
KE = 1/2 mv².

Question: A 3 kg body moves at 6 m/s. Its kinetic energy is:

A. 54 J

B. 18 J

C. 108 J

D. 9 J

Correct Answer: A. 54 JExplanation: KE = 1/2 mv².

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QID #1144495 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 26 Medium

If 248 J of work is done in 3 s, power is:

Correct Answer: A. 82.6667 W
Power = work/time.

Question: If 248 J of work is done in 3 s, power is:

A. 82.6667 W

B. 744 W

C. 251 W

D. 41.3333 W

Correct Answer: A. 82.6667 WExplanation: Power = work/time.

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QID #1144494 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 11 Medium

An element X has valency 4. If oxygen has valency 2, which statement is useful while writing the simplest oxide formula?

Correct Answer: A. Criss-cross the valencies and simplify the ratio
The criss-cross method uses valencies to obtain the simplest combining ratio.

Question: An element X has valency 4. If oxygen has valency 2, which statement is useful while writing the simplest oxide formula?

A. Criss-cross the valencies and simplify the ratio

B. Add the valencies only

C. Ignore oxygen's valency

D. Use atomic masses instead

Correct Answer: A. Criss-cross the valencies and simplify the ratioExplanation: The criss-cross method uses valencies to obtain the simplest combining ratio.

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QID #1144493 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 11 Medium

The process in which a heavy nucleus splits is called:

Correct Answer: B. fission
Splitting a heavy nucleus is nuclear fission.

Question: The process in which a heavy nucleus splits is called:

A. fusion

B. fission

C. ionization

D. radiation only

Correct Answer: B. fissionExplanation: Splitting a heavy nucleus is nuclear fission.

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QID #1144492 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 11 Medium

The energy stored in a stretched spring is:

Correct Answer: B. potential
A stretched spring stores elastic potential energy.

Question: The energy stored in a stretched spring is:

A. kinetic

B. potential

C. chemical

D. nuclear

Correct Answer: B. potentialExplanation: A stretched spring stores elastic potential energy.

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QID #1144491 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 11 Medium

A sample has mass 310 g and volume 60 cm³. Density is:

Correct Answer: A. 5.16667 g/cm³
Density = mass/volume.

Question: A sample has mass 310 g and volume 60 cm³. Density is:

A. 5.16667 g/cm³

B. 18600 g/cm³

C. 0.193548 g/cm³

D. 370 g/cm³

Correct Answer: A. 5.16667 g/cm³Explanation: Density = mass/volume.

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QID #1144490 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 11 Medium

A wave has frequency 65 Hz and wavelength 4 m. Its speed is:

Correct Answer: A. 260 m/s
Wave speed v=fλ.

Question: A wave has frequency 65 Hz and wavelength 4 m. Its speed is:

A. 260 m/s

B. 16.25 m/s

C. 69 m/s

D. 0.0615385 m/s

Correct Answer: A. 260 m/sExplanation: Wave speed v=fλ.

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QID #1144489 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 11 Medium

A current of 5 A flows through a resistance of 4 Ω. The voltage is:

Correct Answer: A. 20 V
Ohm's law: V = IR.

Question: A current of 5 A flows through a resistance of 4 Ω. The voltage is:

A. 20 V

B. 9 V

C. 0.8 V

D. 1.25 V

Correct Answer: A. 20 VExplanation: Ohm's law: V = IR.

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QID #1144488 Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 26 Medium

For u=4 m/s, a=4 m/s² and t=4 s, displacement is:

Correct Answer: A. 48 m
Use s = ut + 1/2 at².

Question: For u=4 m/s, a=4 m/s² and t=4 s, displacement is:

A. 48 m

B. 12 m

C. 16 m

D. 64 m

Correct Answer: A. 48 mExplanation: Use s = ut + 1/2 at².

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