RRB Group D GK Questions 2026

Moga was modelled on the gaur, the large wild cattle of the Western Ghats which is the state animal of Goa, and it was chosen as the mascot when Goa hosted the 37th National Games in 2023.

The 37th National Games were held in Goa in 2023, the state hosting them for the first time after a long wait, with events spread across Panaji and other centres and with the mascot Moga, a gaur or Indian bison, the state animal of Goa.

Savaj was a cub of the Asiatic lion, and it was chosen as the mascot of the Gujarat edition of 2022 because the Gir forest of Gujarat is the only place in the world where that subspecies survives in the wild, making the lion the obvious emblem of the host…

The 36th National Games were held in Gujarat in 2022, spread across Ahmedabad, Gandhinagar, Surat, Vadodara, Rajkot and Bhavnagar, with the mascot Savaj, an Asiatic lion cub chosen because the Asiatic lion survives in the wild only in that state.

The Indian Olympic Association is the national Olympic committee of the country, and it conducts the National Games in partnership with the Olympic association of the host state, deciding the list of disciplines, approving the venues and ratifying the results, with support from the Ministry of Youth Affairs and Sports.

The competition had been held since 1924 under the name the All India Olympic Games, and at the Bombay edition of 1940 it was renamed the National Games, which it has remained ever since.

The first edition was staged in 1924 at Lahore, then the chief city of undivided Punjab, under the name the All India Olympic Games, and its purpose was to create a national meet from which an Indian team could be picked for the Olympic Games.

A colloid is named according to the states of its two parts, the dispersed phase and the dispersing medium, and an emulsion is defined as a colloid in which a liquid is dispersed in another liquid, so the dispersing medium must itself be a liquid.

A molecule of water contains two atoms of hydrogen and one of oxygen.

In crystallisation a hot saturated solution is allowed to cool slowly, and as it cools only the required substance comes out of solution in the regular form of crystals while the impurities, present in smaller amounts, stay dissolved in the liquid that is left behind, which is called the mother…

When salt dissolves in water it breaks up into separate ions, which are far smaller than the wavelength of visible light, so they cannot scatter a beam sideways and the path of light through the liquid stays invisible.

Chromatography separates substances that are dissolved in the same solvent and present in very small quantities, by letting the solution creep along a strip of filter paper.

Ammonium chloride passes directly from the solid to the vapour state on heating, without melting, while common salt does not.

Brass is made by melting copper with zinc, and the resulting homogeneous mixture is harder than copper, easier to cast and machine and gives the familiar yellow colour used for utensils, fittings and musical instruments.

When two miscible liquids boil at temperatures far apart, ordinary distillation is enough, because the more volatile liquid boils off almost completely before the other begins.

Kerosene and water do not mix, so on standing they form two distinct layers with the lighter kerosene above the denser water.

Milk is an emulsion in which tiny globules of fat are dispersed through water, and those globules fall within the colloidal size range, so milk looks uniform to the eye, does not separate on standing, passes through filter paper and shows the Tyndall effect.

The particles of a colloid are between one and one thousand nanometres across, which is large enough to scatter a beam of light sideways and make the path of the beam visible.

Common salt is sodium chloride, in which sodium and chlorine are chemically combined in a fixed ratio by mass, and the result has properties quite unlike either element, since sodium reacts violently with water and chlorine is a poisonous gas while their compound is eaten daily.

The world governing body for chess was established on 20 July 1924 in Paris, and the anniversary is kept as International Chess Day, with the United Nations later recognising it as an international day in acknowledgement of the reach of the game and of its Indian ancestor, chaturanga.