NDA GK Questions 2026

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…

Both are recognised across the world for their outstanding cultural and historical significance, and the minister’s letter drew attention to this standing while proposing them as venues.

Prataprao Jadhav, who holds independent charge of the Ministry of Ayush and is also Minister of State in the Ministry of Health and Family Welfare, has written to the Defence Minister asking that the aerobatic display team of the Indian Air Force be permitted to perform at Lonar, Ajanta and…

The Surya Kiran Aerobatic Display Team is the air force’s formation display team, and it has a reputation for precision, skill and closely coordinated aerial manoeuvres.

Lonar Crater Lake is a unique natural formation in the Buldhana district of Maharashtra, and it attracts visitors because of its distinctive geological and environmental features.

The National Institute of Virology is at Pune in Maharashtra and works under the Indian Council of Medical Research; it began in 1952 as the Virus Research Centre and it isolated the virus strain used in developing the indigenous whole virion inactivated vaccine Covaxin.

A toxoid vaccine uses the toxin of a microbe rather than the microbe itself, treated so that it can no longer harm the body but still provokes antibodies; the tetanus and diphtheria vaccines are the two standard examples, and they work because in those diseases it is the toxin that…

The World Health Organization certified the South East Asia Region, India included, as free of wild poliovirus in March 2014, three years after the last case in the country, because certification requires three consecutive years without a case.

Mission Indradhanush was launched on 25 December 2014 to reach children who had received no vaccine or only some of the prescribed doses, and its name refers to the rainbow of vaccines then in the programme.

The Universal Immunization Programme was launched in 1985 and remains the backbone of child immunisation in India, covering tuberculosis, diphtheria, whooping cough, tetanus, polio, measles, rubella and hepatitis B, with further vaccines in selected states.

BCG stands for Bacillus Calmette Guerin, a live attenuated strain of a bovine tuberculosis bacterium, and it is given at or soon after birth under the Universal Immunization Programme to guard against severe forms of childhood tuberculosis.

In 1796 Jenner used material from cowpox, a mild disease of cattle, to protect a boy against smallpox, and the word vaccine itself comes from vacca, the Latin for cow.

Swine flu is an influenza infection of the type first recognised in pigs, and the name itself records the animal in which the virus circulates before it passes to people; once it is in a human population it spreads from person to person by droplets.

Malaria is caused by the protozoan Plasmodium and carried by the female Anopheles mosquito, and kala azar, also called visceral leishmaniasis, is caused by the protozoan Leishmania donovani and carried by the sandfly.

Typhoid is caused by the bacterium Salmonella Typhi, which spreads through food and water contaminated with human waste, and it is prevented both by sanitation and by the typhoid conjugate vaccine.

He flew in 1984 aboard a Soviet mission under the Interkosmos programme and spent about a week in orbit, and his reply that India looked the best in the world from up there is often quoted.