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SSC CHSL GK Questions 2026

Static GK decides the General Awareness score in SSC CHSL. Of the 25 questions in Tier-I and the 20 in Tier-II, most come from Indian Polity, History, Geography, the Economy and General Science, the areas the CHSL 2026 notice lists as History, Culture, Geography, Economic Scene, General Policy and Scientific Research relating to India and its neighbouring countries. The level is that of Class 12, so the questions are direct: which article, which river, which ruler, which year. Polity asks about parts and schedules of the Constitution, fundamental rights, the President, Parliament, the Supreme Court and constitutional bodies. History covers the Indus Valley, the Mauryas and Guptas, the Sultanate and Mughal periods, and the freedom struggle from 1857 to 1947. Geography asks about rivers, soils, climate, national parks, minerals and world physical features. The Economy part asks about budget terms, the RBI, banking and basic concepts. General Science is school-level Physics, Chemistry and Biology with everyday applications, and Culture covers dances, festivals, monuments and books. This page holds GK24's topic-wise GK notes for SSC CHSL, written as short facts and tables so a topic can be revised in one sitting. Read a topic, then solve its previous-year questions and quiz on this site to check what you retained.

SSC CHSL GK Questions with Answers

Q2001.Awards & HonoursHard

What is the full form of PRISM, the model used after a mine repurposing project is selected?

  1. A.Post-Mining Repurposing Implementation Strategy Model
  2. B.Progressive Reclamation and Integrated Site Management
  3. C.Planned Rehabilitation of Indian Surface Mines
  4. D.Public Resource Investment and Site Monitoring
Show answer
Correct answer: A. Post-Mining Repurposing Implementation Strategy Model

PRISM is the next step after SUVIKALP has helped identify a suitable project for land left over from mining.

Q2002.Awards & HonoursMedium

In which category was SUVIKALP given the SKOCH Gold Award 2026?

  1. A.Digital Operational Efficiency - Data Driven Decision Making
  2. B.Environment and Climate Action
  3. C.Corporate Social Responsibility
  4. D.Skill Development and Livelihoods
Show answer
Correct answer: A. Digital Operational Efficiency - Data Driven Decision Making

SUVIKALP received the SKOCH Gold Award 2026 under this category on 26 September 2026, and the choice of category fits the tool, which ranks mine repurposing options through a structured, data-driven process that weighs technical, environmental, social and economic criteria.

Q2003.Awards & HonoursMedium

SUVIKALP, the mine repurposing tool honoured with the SKOCH Gold Award 2026, has been developed by which body?

  1. A.Coal India Limited
  2. B.Coal Controller Organisation
  3. C.NITI Aayog
  4. D.Central Pollution Control Board
Show answer
Correct answer: B. Coal Controller Organisation

The CCO, which functions under the Ministry of Coal, developed SUVIKALP as an in-house Mine Repurposing Tool to help stakeholders select suitable projects for land left behind after mining, and it is the CCO that has been recognised with the SKOCH Gold Award 2026 in the category Digital Operational Efficiency…

Q2005.General ScienceAsked in: NDA · NDA-II 2018, GATMedium

A planet has a mass M₁ and radius R₁. The value of acceleration due to gravity on its surface is g₁. There is another planet 2, whose mass and radius both are two times that of the first planet. Which one of the following is the acceleration due to gravity on the surface of planet 2?

  1. A.g₁
  2. B.2g₁
  3. C.g₁/2
  4. D.g₁/4
Show answer
Correct answer: C. g₁/2

Surface gravity is g = GM/R², so doubling the mass doubles g while doubling the radius divides it by four, leaving g₁ × 2/4 = g₁/2.

Q2008.General ScienceAsked in: NDA · NDA-I 2021, GATMedium

Which one of the following conclusions could not be derived from Rutherford's α-particle scattering experiment?

  1. A.Most of the space in the atom is empty.
  2. B.The radius of the atom is about 10⁵ times the radius of the nucleus.
  3. C.Electrons move in a circular path of fixed energy called orbits.
  4. D.Nearly all the mass of the atom resides in the nucleus.
Show answer
Correct answer: C. Electrons move in a circular path of fixed energy called orbits.

. Orbits of fixed energy were proposed by Niels Bohr in 1913; Rutherford's experiment said nothing about the energy of electrons.

Q2013.General ScienceAsked in: NDA · NDA-II 2026, GATMedium

Which of the following statements is/are correct in respect of Portland cement ? I. Adding more water (higher water-cement ratio) accelerates the initial setting time of cement. II. The addition of a small percentage of gypsum gives the desired retardation. III. Gypsum is added during manufacturing to accelerate the setting time of cement. Select the answer using the code given below :

  1. A.I and II
  2. B.I and III
  3. C.I only
  4. D.II only
Show answer
Correct answer: D. II only

Only statement II is correct: a small amount of gypsum is added to cement to slow down its setting. Portland cement is made by heating limestone and clay to form clinker, which is then ground with about 2 to 3 per cent gypsum (calcium sulphate dihydrate).

Q2014.General ScienceAsked in: NDA · NDA-I 2018, GATMedium

Which one of the following properties is NOT true for graphite ?

  1. A.Hybridisation of each carbon atom is sp³
  2. B.Hybridisation of each carbon atom is sp²
  3. C.Electrons are delocalized over the whole sheet of atoms
  4. D.Each layer is composed of hexagonal rings
Show answer
Correct answer: A. Hybridisation of each carbon atom is sp³

In graphite each carbon atom is sp² hybridised, not sp³, so statement A is the one that is not true.

Q2018.General ScienceAsked in: NDA · NDA-I 2022, GATEasy

Which one of the following reactions is an example of decomposition reaction?

  1. A.CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(g)
  2. B.2AgCl(s) → (sunlight) 2Ag(s) + Cl₂(g)
  3. C.CuO + H₂ → (heat) Cu + H₂O
  4. D.Fe(s) + CuSO₄(aq) → FeSO₄(aq) + Cu(s)
Show answer
Correct answer: B. 2AgCl(s) → (sunlight) 2Ag(s) + Cl₂(g)

A single compound, silver chloride, breaks down into two simpler substances, silver and chlorine, which is exactly what a decomposition reaction is.

Q2019.General ScienceAsked in: NDA · NDA-II 2023, GATEasy

What is the action of litmus on ethanol ?

  1. A.Litmus is neutral towards ethanol
  2. B.Ethanol turns blue litmus to red; confirming acidic nature of ethanol
  3. C.Ethanol turns red litmus to blue; confirming basic nature of ethanol
  4. D.Ethanol decolorizes litmus through bleaching action
Show answer
Correct answer: A. Litmus is neutral towards ethanol

Ethanol does not change the colour of either red or blue litmus, because it is neutral. Ethanol, C₂H₅OH, is an alcohol.