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 Inorganic Chemistry MCQs

Transition temperature for tin grey & tin white is: ?

  • 128.15°C
  • 18°C
  • 246.12°C
  • 96°C
0 Comments
Correct Answer: B. 18°C

Explanation:

Tin (Sn) is a chemical element that exists in different allotropic forms depending ... Read More Details

2 Physical Chemistry MCQs

Which of the following is a non-crystalline solid pair?

  • Diamond, wood
  • Glass, table salt
  • Wood, glass
  • Sucrose, glass
0 Comments
Correct Answer: C. Wood, glass

Explanation:

Solids are broadly classified into crystalline and non-crystalline (amorphous) solids. Crystalline solids have ... Read More Details

3 Chemistry MCQs

Actinides are the elements with atomic numbers from ?

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

Explanation:

The actinide series is a group of 15 chemical elements in the periodic ... Read More Details

4 Analytical Chemistry MCQs

Mass spectrometry mainly provides information about ?

  • Mass
  • e/m ratio
  • Isotopes
  • None of these
0 Comments
Correct Answer: B. e/m ratio

Explanation:

Mass spectrometry (MS) is a powerful analytical technique that works on the principle ... Read More Details

5 Organic Chemistry MCQs

Ketones and aldehydes can be distinguished using which reagent?

  • Benedict’s solution
  • Fehling’s solution
  • Tollens’ reagent
  • None of these
0 Comments
Correct Answer: C. Tollens’ reagent

Explanation:

Aldehydes and ketones are two important classes of carbonyl compounds in organic chemistry. ... Read More Details

6 Physical Chemistry MCQs

The size of colloidal particles is:

  • Greater than true solution
  • Greater than suspension
  • In between true solution and suspension
  • All of these
0 Comments
Correct Answer: C. In between true solution and suspension

Explanation:

Colloids represent a unique state of matter that lies between true solutions and ... Read More Details

7 Organic Chemistry MCQs

The antiseptic Urotropine is formed from which compound?

  • Carboxylic acid
  • Acetaldehyde
  • Formaldehyde
  • Ketone
0 Comments
Correct Answer: C. Formaldehyde

Explanation:

Urotropine, also known as hexamethylenetetramine, is a crystalline organic compound that has important ... Read More Details

8 Inorganic Chemistry MCQs

Isotopes differ in which property?

  • Arrangement of electrons in orbitals
  • Position in the periodic table
  • Properties that depend on mass
  • Chemical properties
0 Comments
Correct Answer: C. Properties that depend on mass

Explanation:

Isotopes are atoms of the same element that have the same number of ... Read More Details

9 Inorganic Chemistry MCQs

Which is the most stable oxidation state of Vanadium?

  • V²⁺
  • V³⁺
  • V⁴⁺
  • V⁵⁺
0 Comments
Correct Answer: B. V³⁺

Explanation:

Vanadium is a transition metal with the atomic number 23. It exhibits multiple ... Read More Details

10 Inorganic Chemistry MCQs

Which oxidation state of copper (Cu) is expected to be diamagnetic?

  • Cu²⁺
  • Cu⁴⁺
  • Cu⁺
  • Cu³⁺
0 Comments
Correct Answer: C. Cu⁺

Explanation:

Copper is a transition metal with the atomic number 29. Its electronic configuration ... Read More Details