CDS Previous Year GK Questions

H₂S is a colourless gas with the familiar smell of rotten eggs, and the human nose can detect it even in very small amounts.

This statement is wrong: Shola forests grow in the high hills of South India, in the Western Ghats, not in the Himalaya.

The Gandatindu Jataka is one of the Jataka tales, the stories of the Buddha's earlier births, which were composed in Pali and preserved in the Buddhist canon.

Nylon 6 is made from a single monomer, caprolactam, whose ring opens on heating and joins up into long polyamide chains.

This Act provided for a Federal Court, which was set up at Delhi in October 1937 to settle disputes between the Centre and the provinces.

The Swedish chemist Berzelius proposed around 1813–1814 that each element be written with one or two letters taken from its name, the system still used today.

A soda-acid extinguisher holds a solution of sodium hydrogen carbonate (baking soda) and a small bottle of sulphuric acid; when the two mix, carbon dioxide is released.

Article 51 says nothing about UN peacekeeping forces; it is a Directive Principle on the promotion of international peace and security.

India signed a contract worth about 5.4 billion US dollars with Russia in October 2018 for five squadrons of the S-400 Triumf long-range surface-to-air missile system.

Dr. B. R. Ambedkar called Article 32 the very soul and heart of the Constitution because it makes the Fundamental Rights enforceable.

By the law of demand, a normal good is bought less when its own price rises, while the effect on the other good depends on two forces pulling in opposite directions.

This statement is wrong: in 1956 Dr. Muthulakshmi Reddy received the Padma Bhushan, not the Bharat Ratna. Muthulakshmi Reddy (1886–1968) of the Madras Presidency broke several barriers.

Nitrogen gas is the element itself in a very stable form, and plants cannot take it up directly from the soil or the air, so it is not used as a fertilizer.

. The Indian Wild Ass Sanctuary, set up in 1973 in the Little Rann of Kutch in Gujarat, is the last home of the Indian wild ass, or khur, a fast and hardy animal adapted to the salt desert.

The Cassini-Huygens mission was a joint project of NASA, the European Space Agency and the Italian Space Agency. Launched in October 1997, it reached Saturn in 2004 and studied the planet, its rings and its moons for thirteen years.

Kot Diji lies in the Khairpur district of Sindh, Pakistan, on the left (eastern) bank of the Indus, across the river from Mohenjo-daro, the largest Harappan city in Sindh.

. A Fischer projection draws a molecule as a cross: the horizontal bonds point towards the viewer and the vertical bonds point away.

Ammonium chloride sublimes: on heating, it changes directly from a solid into vapour without melting, and the vapour turns back into solid on a cool surface.

Agni-P, or Agni Prime, is a new-generation nuclear-capable ballistic missile of the Agni family developed by the Defence Research and Development Organisation (DRDO), with a range capability of 1,000 to 2,000 km.

. According to the Manusmriti and other Dharmashastras, the paternal estate was to be divided equally among the sons after the death of the parents, with a special share for the eldest, while women could not claim a share of it.