SSC CHSL GK Questions 2026

Vegetable oils are hardened into margarine and vanaspati ghee by hydrogenation. Liquid vegetable oils are unsaturated: their fatty-acid chains contain carbon-carbon double bonds.

This matches the reactivity series, which lists metals from the most to the least reactive. Sodium is near the top: it reacts violently with cold water and is stored under kerosene.

Temporary hardness is caused by the bicarbonates (hydrogencarbonates) of calcium and magnesium dissolved in water. It is called temporary because it can be removed simply by boiling: on heating, the soluble bicarbonates break down into insoluble carbonates, or magnesium hydroxide, which settle out, and carbon dioxide escapes.

Quick lime is calcium oxide (CaO), which contains no carbonate, so it gives no carbon dioxide with an acid. Acids release carbon dioxide only from carbonates and hydrogencarbonates: the general reaction is metal carbonate plus acid gives salt, water and carbon dioxide.

Plaster of Paris is made from gypsum, not from common salt. When gypsum, calcium sulphate dihydrate (CaSO4·2H2O), is heated to about 373 K, it loses part of its water and becomes calcium sulphate hemihydrate (CaSO4·½H2O), which is Plaster of Paris; it sets hard again when mixed with water and is…

Anthracene sublimes on heating, while common salt does not, so heating the mixture separates them. Sublimation is the change of a solid directly into vapour without passing through the liquid state.

A honeybee sting injects methanoic acid, also called formic acid (HCOOH), which causes the burning pain and irritation.

Potassium hydroxide gives potassium soaps, which are softer and milder than sodium soaps. Saponification is the reaction in which an oil or fat is heated with an alkali to give soap, the sodium or potassium salt of a long-chain fatty acid, and glycerol.

Rain water is the purest natural form of water because it is formed by evaporation and condensation, a natural distillation.

The Ahmedabad mill strike of 1918 was Gandhi's satyagraha for industrial workers. A dispute arose between the cotton mill owners and the workers over the plague bonus, which the owners wanted to withdraw.

The Constitution gives the Supreme Court no such jurisdiction; the collegium is only the system by which senior judges recommend appointments.

Among the four, Charan Singh held office for the shortest time, about 170 days. He became Prime Minister on 28 July 1979 after the Janata government of Morarji Desai fell, but resigned on 20 August 1979 without ever facing Parliament, when the Congress withdrew its support.

Both the Steppes and the Pampas are mid-latitude grasslands, so only the first statement is right.

The Suez Canal is an artificial sea-level waterway joining two seas, and it is the busier and more important of the two great canals.

The correct answer is Lucknow, the capital of Uttar Pradesh, where the Ministry of Labour and Employment is holding the two-day state-level capacity-building and awareness programme on Labour Codes, labour welfare and social protection in collaboration with the Government of Uttar Pradesh.

The correct answer is the Code on Wages, which belongs to 2019.

Shram Samvad is a 90-day outreach initiative through which the Ministry of Labour and Employment is undertaking district-level engagement across 316 districts in all 36 States and Union Territories, with special attention to industrial clusters.

Adipose tissue is a loose connective tissue whose cells, called adipocytes, are built to store fat. Each cell holds a large droplet of fat that pushes the nucleus and cytoplasm to one side.

Germanium is a metalloid, an element whose properties lie between those of metals and non-metals. It is a hard, shiny, grey-white solid like a metal, yet it is brittle and conducts electricity far less well than a metal, which makes it a semiconductor.

Temporary hardness is caused by the bicarbonates of magnesium and calcium, Mg(HCO3)2 and Ca(HCO3)2. It is called temporary because simple boiling removes it: on heating, the soluble bicarbonates break down into insoluble carbonate or hydroxide, carbon dioxide and water, and the solid settles out.