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NTSE/CBSE (Science) - 12

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What is the length of small intestine in an adult man?

  1. 5.0 m

  2. 6.9 m

  3. 7.1 m

  4. 6.5 m


Correct Option: B

Which of the following options is the process to change liquid into solid?

  1. Evaporation

  2. Freezing

  3. Sublimation

  4. None of these


Correct Option: B

Which of the following options is a non-metal?

  1. Tin

  2. Lead

  3. Phosphorus

  4. None of these


Correct Option: C

Which of the following waves are related to musical instrument?

  1. Longitudinal waves

  2. Electromagnetic waves

  3. Elastic waves

  4. None of these


Correct Option: A
Explanation:

Correct answer is (1). 

Which of the following options is not defect of vision?

  1. Baldness

  2. Hypermetropia

  3. Astigmatism

  4. None of these


Correct Option: A

What is the strength of an acid or base measured on a scale called?

  1. Vernier Scale

  2. Musical scale

  3. pH scale

  4. None of these


Correct Option: C

Which instrument is used to measure the potential difference?

  1. Potentiometer

  2. Galvanometer

  3. Voltmeter

  4. None of these


Correct Option: C

Sound travels faster in _________.

  1. sea water

  2. mercury

  3. kerosene

  4. none of these


Correct Option: A

Which of the following liquids has the highest density?

  1. Water

  2. Mercury

  3. Alcohol

  4. None of these


Correct Option: B

Balloons are filled with _________.

  1. oxygen

  2. hydrogen

  3. nitrogen

  4. none of these


Correct Option: B

What is the normal temperature of the human body?

  1. 98.4°F

  2. 96.4°F

  3. 90.4°F

  4. None of these


Correct Option: A

Which of the following options turn red litmus into blue?

  1. Acids

  2. Bases

  3. Salts

  4. None of these


Correct Option: B

Which of the following organisms spreads the disease called mumps?

  1. Virus

  2. Fungus

  3. Bacterium

  4. None of these


Correct Option: A

When iron rusts, its weight __________.

  1. increases

  2. decreases

  3. no change

  4. none of these


Correct Option: A

Which of the following parts is related to seed?

  1. Stem

  2. Leaf

  3. Ovule

  4. None of these


Correct Option: C

A voltmeter has _________.

  1. high resistance

  2. very low resistance

  3. no resistance

  4. none of these


Correct Option: A

Name the largest gland in the human body.

  1. Heart

  2. Liver

  3. Kidney

  4. None of these


Correct Option: B

What is the corrosion of iron called?

  1. Roasting

  2. Rusting

  3. Rating

  4. None of these


Correct Option: B

Who discovered Neutron?

  1. Thomson

  2. Chadwick

  3. Rutherford

  4. None of these


Correct Option: B

Which of the following metals is the most malleable?

  1. Silver

  2. Lead

  3. Gold

  4. None of these


Correct Option: C

Which of the following options is the process in which a carbonate ore is heated strongly in the absence of air to convert it into metal oxide?

  1. Calcination

  2. Roasting

  3. Electrolysis

  4. None of these


Correct Option: A

Which of the following options is unit of impulse?

  1. Steradian

  2. Newton-sec

  3. Pascal-sec

  4. None of these


Correct Option: B

What are centrosomes related to?

  1. Mitochondria

  2. Lysosomes

  3. Animal cell

  4. None of these


Correct Option: C

Which of the following options is a conductor?

  1. Glass

  2. Ebonite

  3. Silver

  4. None of these


Correct Option: C

How much our body contains about water by mass?

  1. 65%

  2. 70%

  3. 80%

  4. None of these


Correct Option: B
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