CDS GK Questions 2026

Three grams of hydrogen, 48 grams of oxygen and 42 grams of nitrogen each come to 1.5 moles, while two grams of carbon is only about 0.17 mole, so carbon holds a different number of particles.

A colloid only looks uniform to the eye; it is in fact a heterogeneous mixture, so this is the statement that is not true.

Copper sulphate holds five water molecules, sodium carbonate ten and gypsum two, so the order asked for is 5, 10 and 2.

The statement in the question is Avogadro's law, given by the Italian scientist Amedeo Avogadro in 1811.

A simple pendulum about one metre long completes one full swing in roughly two seconds, and a pendulum of this length is called the seconds pendulum.

Kwame Nkrumah led Ghana and was one of the five founders of the Non-Aligned Movement. He took Ghana to independence in 1957, the first country in sub-Saharan Africa to break free of colonial rule, and served first as its Prime Minister and then as its President.

A reading of 113 on the Fahrenheit scale works out to 45 degrees Celsius, and adding 273 to that gives about 318 K. Fahrenheit is turned into Celsius with the relation C = (F - 32) x 5/9, so (113 - 32) x 5/9 = 81 x 5/9 = 45…

It is the second of the three Yudh Seva medals instituted in 1980, below the Sarvottam Yudh Seva Medal and above the Yudh Seva Medal.

The two lists are announced on 26 January and on 15 August, and the medals are presented later at investiture ceremonies by the President, who is the Supreme Commander of the armed forces.

The series has three grades, the Sarvottam Jeevan Raksha Padak, the Uttam Jeevan Raksha Padak and the Jeevan Raksha Padak, and it is administered by the Ministry of Home Affairs and open to civilians, including children.

The Sena Medal, the Nao Sena Medal and the Vayu Sena Medal were instituted in 1960 for individual acts of gallantry or exceptional devotion to duty, one for each service, and the word Nao in the name marks the Navy just as Vayu marks the Air Force.

He was awarded the Param Vir Chakra posthumously for the action at Badgam in Kashmir in November 1947, during the first conflict after independence, and the medal itself was instituted on 26 January 1950 with effect from 15 August 1947.

It is the highest peacetime gallantry award and is given for the most conspicuous bravery or self-sacrifice away from the field of battle, to members of the armed forces and to civilians alike.

The three grades of the series are worded exactly this way and questions are set on the wording alone: the most exceptional order for the Param Vishisht Seva Medal, an exceptional order for the Ati Vishisht Seva Medal and a high order for the Vishisht Seva Medal.

The three medals were instituted in 1980 and follow the same three steps as the Vishisht Seva medals, but the word Yudh in the name shows that they belong to wartime service rather than peacetime service.

The medal was instituted in that year in three classes, and in 1967 the classes were given the separate names Param Vishisht Seva Medal, Ati Vishisht Seva Medal and Vishisht Seva Medal.

It is given for distinguished service of the most exceptional order, and the word Param marks the top step of every Indian series of decorations.

The lateral meristem, better known as the cambium, lies as a ring along the length of the stem and root and divides to add new xylem on its inner side and new phloem on its outer side, so the stem grows thicker year after year; this is secondary growth, and…

Blood is classed as a connective tissue because its cells lie in a matrix, and because that matrix, the plasma, is liquid it is called a fluid connective tissue; the red cells, white cells and platelets float in it and it connects the organs of the body by carrying gases…

The muscle of the heart shows light and dark bands under the microscope, so it is striated, yet it is not under the control of the will and it contracts rhythmically without rest for the whole of life, so it is involuntary; this unusual combination is exactly why it is…