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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

Q9001.General ScienceEasy

Which organelle is known as the suicide bag of the cell?

  1. A.Ribosome
  2. B.Lysosome
  3. C.Centrosome
  4. D.Vacuole
Show answer
Correct answer: B. Lysosome

A lysosome is a membrane-bound sac of powerful digestive enzymes that breaks down worn-out organelles and any foreign particle the cell takes in; if the cell is damaged or starving, the sacs burst and the same enzymes digest the cell itself, which is why the name suicide bag is used.

Q9002.General ScienceAsked in: CDS · 7 Feb 2021Medium

Which cell organelles have their own DNA and Ribosomes?

  1. A.Golgi body and Endoplasmic Reticulum
  2. B.Mitochondria and Plastids
  3. C.Lysosome and Golgi body
  4. D.Vacuole and Plastids
Show answer
Correct answer: B. Mitochondria and Plastids

Both carry a small circular DNA of their own and their own 70S ribosomes, so they make a part of their protein themselves and divide independently of the cell; this semi-autonomous nature is the main evidence for the view that they descend from free-living bacteria engulfed by an early cell.

Q9004.Environment & EcologyMedium

From which date were identified single-use plastic items banned throughout India?

  1. A.1 July 2022
  2. B.2 October 2019
  3. C.1 January 2021
  4. D.15 August 2023
Show answer
Correct answer: A. 1 July 2022

From that date the manufacture, import, stocking, distribution, sale and use of a listed set of single-use plastic articles became an offence across the country; the list covers earbuds with plastic sticks, plastic sticks for balloons and flags, candy and ice-cream sticks, thermocol used for decoration, plates, cups, glasses, cutlery…

Q9005.Environment & EcologyMedium

The Swachh Bharat Mission was launched on which date?

  1. A.15 August 2014
  2. B.2 October 2014
  3. C.26 January 2015
  4. D.5 June 2015
Show answer
Correct answer: B. 2 October 2014

The mission was launched on the 145th birth anniversary of Mahatma Gandhi, whose insistence on sanitation the campaign invokes, and it runs in two wings, one for urban areas and one for rural areas.

Q9006.Environment & EcologyHard

Pyrolysis of waste is best described as:

  1. A.Burning of waste in excess air
  2. B.Decomposition of waste by heating in the absence of oxygen
  3. C.Decomposition of waste by earthworms
  4. D.Compaction of waste in a lined pit
Show answer
Correct answer: B. Decomposition of waste by heating in the absence of oxygen

In pyrolysis the waste is heated to a high temperature in a closed chamber from which air is kept out, so the material does not burn but breaks into a liquid oil, a solid char and a combustible gas, all of which can be used as fuel or feedstock.

Q9007.Environment & EcologyEasy

Vermicomposting of organic waste is carried out with the help of:

  1. A.Earthworms
  2. B.Termites
  3. C.Honey bees
  4. D.Blue-green algae
Show answer
Correct answer: A. Earthworms

Vermicomposting uses earthworms, which swallow organic waste, grind it in their gizzard and pass it out as casts that are rich in nitrogen, phosphorus and potassium, so the product is a finer and more nutritious manure than ordinary compost and is ready sooner.

Q9008.Environment & EcologyMedium

The Basel Convention, adopted in 1989, deals with which of the following?

  1. A.Protection of the ozone layer
  2. B.Transboundary movement of hazardous wastes
  3. C.Conservation of migratory species
  4. D.Trade in endangered species
Show answer
Correct answer: B. Transboundary movement of hazardous wastes

The Basel Convention was adopted in 1989 to stop rich countries from shipping toxic and hazardous waste to poorer countries for cheap disposal, and it requires the prior informed consent of the receiving country before any such consignment moves.

Q9009.Environment & EcologyEasy

In the context of waste rules, EPR stands for:

  1. A.Environmental Protection Rules
  2. B.Extended Producer Responsibility
  3. C.Effluent Pollution Register
  4. D.Energy Production from Refuse
Show answer
Correct answer: B. Extended Producer Responsibility

Under this idea a producer, importer or brand owner stays answerable for its product after the consumer has finished with it, and must arrange to collect back and recycle an agreed quantity of packaging or equipment; the plastic waste, e-waste and battery waste rules all run on it.

Q9011.Environment & EcologyEasy

Plastic fragments of what size are called microplastics?

  1. A.Smaller than 5 millimetres
  2. B.Smaller than 5 centimetres
  3. C.Smaller than 50 microns
  4. D.Smaller than 5 metres
Show answer
Correct answer: A. Smaller than 5 millimetres

Microplastics are plastic particles under five millimetres across, whether they were manufactured that small, as in cosmetic microbeads and synthetic textile fibres, or were formed when larger plastic articles weathered and broke up in sunlight and waves.

Q9012.Environment & EcologyMedium

Under the Bio-Medical Waste Management Rules, human anatomical waste is collected in a bin of which colour?

  1. A.Yellow
  2. B.Red
  3. C.Blue
  4. D.White
Show answer
Correct answer: A. Yellow

The yellow category covers human and animal anatomical waste, soiled waste such as dressings and cotton contaminated with blood, expired medicines and chemical waste, and this material is destroyed by incineration, plasma pyrolysis or deep burial; nothing from the yellow bin is recycled.

Q9013.Environment & EcologyEasy

Which one of the following is a biodegradable waste?

  1. A.Thermocol sheet
  2. B.Aluminium foil
  3. C.Vegetable peel
  4. D.Polythene bag
Show answer
Correct answer: C. Vegetable peel

Biodegradable waste is waste that bacteria and fungi can break down into simpler substances within a short time, and kitchen waste such as vegetable peel is the classic example; it is exactly the wet fraction that Indian cities compost or send to a biogas digester.

Q9014.Computer AwarenessMedium

SQL, a fourth-generation language, is mainly used for:

  1. A.Designing web pages
  2. B.Working with databases
  3. C.Writing operating systems
  4. D.Editing images
Show answer
Correct answer: B. Working with databases

SQL stands for Structured Query Language, and it is used to create tables, insert rows, update and delete data and, above all, to ask questions of a relational database with statements such as SELECT; it is called non-procedural because the programmer states what result is wanted and the database system…

Q9015.Computer AwarenessMedium

The Python programming language was created by:

  1. A.Guido van Rossum
  2. B.Brendan Eich
  3. C.Niklaus Wirth
  4. D.John Backus
Show answer
Correct answer: A. Guido van Rossum

He designed Python in the Netherlands and released the first version in 1991, choosing a syntax with indentation instead of braces so that programs would be easy to read; the name comes from a television comedy series and not from the snake.

Q9016.Computer AwarenessMedium

Which of the following is NOT a programming language?

  1. A.Python
  2. B.HTML
  3. C.Java
  4. D.C++
Show answer
Correct answer: B. HTML

HyperText Markup Language uses tags to describe how the content of a web page is arranged, such as headings, paragraphs, lists, tables and images, but it has no variables, no conditions and no loops, so it cannot express logic or take decisions; for that reason it is called a markup…

Q9017.Computer AwarenessEasy

Machine language, the first generation of programming languages, is written using:

  1. A.English words
  2. B.Mnemonics such as ADD and MOV
  3. C.The binary digits 0 and 1
  4. D.Query statements
Show answer
Correct answer: C. The binary digits 0 and 1

Machine language is the only language the processor understands directly, because each instruction is a pattern of electrical states that is written as a string of zeros and ones; a program in machine language therefore needs no translation and runs fastest, but it is tied to one processor and is…

Q9018.Computer AwarenessAsked in: RRB JE · 30 Aug 2019Medium

Which of the following is/are the rules to declare variables in Java?

  1. A.Java keywords cannot be used as variable names
  2. B.All of the options
  3. C.Variable names are case-sensitive
  4. D.The first character must be a letter
Show answer
Correct answer: B. All of the options

The correct answer is B, all of the options, because each of the other three statements is a genuine rule of the language and the question asks which of them apply.

Q9019.Computer AwarenessAsked in: RRB JE · 30 Aug 2019Hard

Which of the following is NOT a java primitive type?

  1. A.short
  2. B.long
  3. C.long double
  4. D.boolean
Show answer
Correct answer: C. long double

Java has exactly eight primitive data types, namely byte, short, int, long, float, double, char and boolean, and long double is not among them; it belongs to C and C++, where it denotes an extended precision floating point number, so the option is a deliberate trap for candidates who have…

Q9020.Computer AwarenessEasy

Which translator converts a high-level program into machine language one statement at a time?

  1. A.Compiler
  2. B.Interpreter
  3. C.Assembler
  4. D.Loader
Show answer
Correct answer: B. Interpreter

An interpreter reads one statement of the source program, translates it and executes it immediately before moving to the next, so it stops at the first error it meets and tells the programmer about that error alone; this makes it convenient for learning and for testing small pieces of code…