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CSS MCQs

Civil Superior Services — Complete MCQ Bank

1,939 Questions
Exam Preparation Guide

How to prepare for CSS

CSS is Pakistan’s premier federal competitive examination. Strong preparation requires conceptual clarity, broad general knowledge and consistent practice across compulsory and optional areas.

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Combine daily MCQ practice with analytical reading, vocabulary building and regular revision of national and international affairs.
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31
Chemistry Hard Uploaded: 04 Sep 2026

What is the percentage composition of oxygen in water (H2O)?

  • A66.7%
  • B11.1%
  • C88.9%
  • D50%
32
Chemistry Easy Uploaded: 04 Sep 2026

One mole of any substance contains how many particles?

  • A3.011 × 10^23
  • B6.022 × 10^22
  • C6.022 × 10^23
  • D1.204 × 10^24
33
Chemistry Easy Uploaded: 04 Sep 2026

Which state of matter has a definite volume but no definite shape?

  • ASolid
  • BLiquid
  • CGas
  • DPlasma
34
Chemistry Medium Uploaded: 04 Sep 2026

According to the kinetic theory of gases, gas particles are considered to have:

  • AFixed volume
  • BVariable mass
  • CNegligible volume
  • DLarge volume
35
Chemistry Medium Uploaded: 04 Sep 2026

What is the bond order of the nitrogen molecule (N2)?

  • A3
  • B4
  • C2
  • D1
36
Chemistry Easy Uploaded: 04 Sep 2026

What type of bond forms between metals and non-metals?

  • AHydrogen bond
  • BMetallic bond
  • CIonic bond
  • DCovalent bond
37
Chemistry Medium Uploaded: 04 Sep 2026

What is the modern periodic law based on?

  • AAtomic mass
  • BDensity
  • CAtomic number
  • DAtomic volume
38
General Knowledge Hard Uploaded: 02 Sep 2026

The Boston Tea Party took place in which year?

  • A1765
  • B1776
  • C1781
  • D1773
39
General Knowledge Hard Uploaded: 02 Sep 2026

Which African country is completely surrounded by South Africa?

  • AEswatini
  • BBotswana
  • CLesotho
  • DNamibia
40
General Knowledge Hard Uploaded: 02 Sep 2026

What is the name of the closest star to Earth other than the Sun?

  • ASirius
  • BProxima Centauri
  • CAlpha Centauri A
  • DBetelgeuse