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1 Chemistry MCQs

What is the molecular formula of Ammonia?

  • NH
  • NH₂
  • NH₃
  • NH₄
0 Comments
Correct Answer: C. NH₃

Explanation:

Ammonia (NH₃) is a simple and important chemical compound composed of one nitrogen ... Read More Details

2 Chemistry MCQs

What is the molecular weight of Ammonia (NH₃)?

  • 17.031 g/mol
  • 18.031 g/mol
  • 19.031 g/mol
  • 27.033 g/mol
0 Comments
Correct Answer: A. 17.031 g/mol

Explanation:

Ammonia (NH₃) is a simple compound made of one nitrogen atom and three ... Read More Details

3 Physics MCQs

Who determined the absolute value of the charge on an electron?

  • J. J. Thomson
  • James Chadwick
  • Ernest Rutherford
  • Robert Millikan
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Correct Answer: D. Robert Millikan

Explanation:

The absolute value of the electron’s charge was first precisely measured by Robert ... Read More Details

4 Physics MCQs

Why was the discovery of the neutron made very late?

  • Because it does not carry any charge
  • Because it does not move
  • Because it is a fundamental particle
  • Because it is present in the nucleus
0 Comments
Correct Answer: A. Because it does not carry any charge

Explanation:

The neutron was discovered relatively late in the history of atomic research, primarily ... Read More Details

5 Biology Mcqs

What is the scientific study of fingerprints called?

  • Dactylography
  • Dactylology
  • Dactyliology
  • Dialectology
0 Comments
Correct Answer: A. Dactylography

Explanation:

The scientific study of fingerprints is called Dactylography. The term comes from the ... Read More Details

6 Biology Mcqs

Which branch of medical science deals with the study of the skin, its functions, diseases, and treatments?

  • Dermatology
  • Dormatology
  • Deontology
  • Dermatoglyphics
0 Comments
Correct Answer: A. Dermatology

Explanation:

The branch of medical science that deals with the study of the skin, ... Read More Details

7 Chemistry MCQs

What is the molecular formula of Nitric Acid?

  • HNO₂
  • HNO₃
  • HN₂O₂
  • H₂NO₄
0 Comments
Correct Answer: B. HNO₃

Explanation:

The molecular formula of nitric acid is HNO₃. It is one of the most important ... Read More Details

8 Biology Mcqs

Who invented the stethoscope?

  • René Laennec
  • Steven Sasson
  • Martin Cooper
  • Dave Hyatt
0 Comments
Correct Answer: A. René Laennec

Explanation:

The stethoscope was invented by René Laennec in 1816. He was a French ... Read More Details

9 Physics MCQs

Why does oil rise up through the wick in a lamp?

  • Because oil is very light
  • Because oil is volatile
  • Due to diffusion of oil through the wick
  • Due to capillary action
0 Comments
Correct Answer: D. Due to capillary action

Explanation:

Oil rises up through the wick in a lamp because of capillary action, ... Read More Details

10 Criminal Procedure Code (CrPC) 1898 MCQs

What does Section 53 of the CrPC 1898 authorize during an arrest?

  • Search of house
  • Seizure of weapons
  • Demand of bail
  • Recording of confession
0 Comments
Correct Answer: B. Seizure of weapons

Explanation:

Section 53 of the CrPC 1898 provides specific authority to law enforcement officers to seize ... Read More Details