CDS GK Questions 2026

Two trends of the periodic table decide the order. Going down a group, atomic radius increases because each new period adds an electron shell; so sodium, in period 3, is larger than lithium, in period 2, of the same group 1.

The surface circulation of the oceans is organised into huge, roughly circular loops called gyres, one in each major ocean basin.

The endoplasmic reticulum (ER) is a network of membrane tubes and sacs inside the cell. Part of it is studded on the outside with tiny granules called ribosomes, which give it a dotted, rough look under an electron microscope; this part is the rough ER.

Operation Spider's Web was carried out by Ukraine, not India, in June 2025: small drones hidden in trucks were driven deep inside Russia and launched against several air bases, damaging long-range bombers.

The post of Chief of Defence Staff (CDS) was created in December 2019 on the advice of the Kargil Review Committee and later expert groups, and the first CDS took office on 1 January 2020.

When an acid such as hydrochloric acid dissolves in water, it splits into ions: hydrogen ions (H⁺, which join water molecules as hydronium ions, H₃O⁺) and negative ions such as chloride (Cl⁻).

The Teesta rises in the glaciers of north Sikkim, flows through Sikkim and the Darjeeling hills into the plains of North Bengal, and then enters Bangladesh, where it joins the Brahmaputra (called the Jamuna there).

The statement is not correct because tsunami is a Japanese word, from tsu (harbour) and nami (wave), meaning a harbour wave.

Phulaguri Dhawa was a peasant uprising of 1861 at Phulaguri in the Nagaon district of Assam.

The power turned into heat in a wire carrying a current I is P = I²R, and the resistance of a wire is R = ρl/A, where ρ is the resistivity of its material.

According to Census 2011, the share of people living in urban areas was about 45.2 per cent in Maharashtra, 47.7 per cent in Kerala, 52.1 per cent in Mizoram and 62.2 per cent in Goa, so this order runs from lowest to highest.

Monopolistic competition is a market with many sellers whose products are close substitutes but not exactly the same, such as different brands of soap, toothpaste or restaurant meals.

The Oudh Kisan Sabha was set up in October 1920 at Pratapgarh by Baba Ramchandra, Gauri Shankar Misra, Jawaharlal Nehru and others, to unite the tenants of Awadh against high rents, illegal cesses and eviction by taluqdars.

Debendranath (Devendranath) Tagore founded the Tattvabodhini Sabha in Calcutta in 1839 to spread the monotheistic ideas of Raja Rammohan Roy and the study of the Upanishads.

Al-Biruni, a scholar from Khwarizm in Central Asia, came to India in the train of Mahmud of Ghazni in the early eleventh century.

Pithoragarh lies in the Kumaon Himalaya of Uttarakhand, close to the borders of Nepal and Tibet, in the most earthquake-prone belt of the country.

A pingo is a dome-shaped hill with a core of ice, found in regions of permafrost such as the Arctic tundra of Canada, Alaska and Siberia.

The French writer Dominique Lapierre wrote The City of Joy, published in 1985.

A fully (perfectly) elastic supply curve is a horizontal line: sellers will supply any quantity at one fixed price and nothing below it.

A person with myopia sees nearby objects clearly but finds distant objects blurred, which is why the defect is called near-sightedness or short-sightedness.