Job Exams Hero

Master Your JobExams with Confidence

Access thousands of practice questions, and improve your test-taking skills with our comprehensive MCQ platform. Whether you're preparing for FPSC, NTS, PPSC, CSS, or any other job test, Jobexams provides the study material you need to succeed. Start practicing now and boost your chances of acing your exams!

Browse Categories
Quick Results 0 found

Question Coming Soon!

"" isn't in our database yet, but we're adding new questions daily.

1 Organic Chemistry MCQs

Which of the following is an artificial man-made fiber?

  • Boron
  • Saffron
  • Rayon
  • None of these
0 Comments
Correct Answer: C. Rayon

Explanation:

Artificial or man-made fibers are fibers produced from chemical substances rather than obtained ... Read More Details

2 Biology Mcqs

According to the Journal of Biological Chemistry (Vol. 158), what percentage of water is found in the human brain and heart?

  • 75%
  • 81%
  • 73%
  • 89%
0 Comments
Correct Answer: C. 73%

Explanation:

Water is a major component of the human body and is essential for ... Read More Details

3 Inorganic Chemistry MCQs

Carbon, Diamond, and Graphite are collectively called what?

  • Allotropes
  • Isomers
  • Isomorphs
  • Isotopes
0 Comments
Correct Answer: A. Allotropes

Explanation:

Carbon exists in several forms with different physical structures but the same chemical ... Read More Details

4 Inorganic Chemistry MCQs

Actinides are the elements with atomic numbers in which range?

  • 97 to 104
  • 101 to 115
  • 89 to 103
  • 36 to 43
0 Comments
Correct Answer: C. 89 to 103

Explanation:

Actinides are a series of metallic elements in the f-block of the periodic ... Read More Details

5 Physical Chemistry MCQs

A falling barometer reading is an indication of what?

  • Snow
  • Storm
  • Intense heat
  • Rainfall
0 Comments
Correct Answer: D. Rainfall

Explanation:

A barometer is an instrument used to measure atmospheric pressure. Atmospheric pressure is ... Read More Details

6 Physical Chemistry MCQs

One fathom is equal to how many feet?

  • 6 feet
  • 6 meters
  • 60 feet
  • 100 cm
0 Comments
Correct Answer: A. 6 feet

Explanation:

A fathom is a traditional unit of length used primarily to measure the ... Read More Details

7 Inorganic Chemistry MCQs

What are rocks called that contain metallic minerals?

  • Bitumen
  • Bauxite
  • Metalloids
  • Ores
0 Comments
Correct Answer: D. Ores

Explanation:

Rocks that contain metallic minerals are called ores. Ores are naturally occurring rocks ... Read More Details

8 Environmental Chemistry MCQs

What is the main cause of soil pollution?

  • Aerosol
  • Ozone
  • Acid rain
  • PAN
0 Comments
Correct Answer: C. Acid rain

Explanation:

Soil pollution occurs when the natural composition of soil is disturbed due to ... Read More Details

9 Physical Chemistry MCQs

What is the main practical problem in hydrogen production?

  • Weight
  • Valency
  • Size
  • Chemical property
0 Comments
Correct Answer: A. Weight

Explanation:

Hydrogen is the lightest element in the periodic table. Its low weight makes ... Read More Details

10 Physical Chemistry MCQs

Why are radiations considered harmful?

  • Causes skin cancer
  • Causes anemia
  • Alters body tissue
  • Is unstable
0 Comments
Correct Answer: A. Causes skin cancer

Explanation:

Radiation is considered harmful because it can damage living cells and tissues, leading ... Read More Details