NDA GK Questions 2026

Sodium reacts vigorously with cold water to form sodium hydroxide and hydrogen gas: 2Na + 2H₂O → 2NaOH + H₂.

Chlorofluorocarbons (CFCs) used in refrigerators, air conditioners, aerosol sprays and foams were the main cause of ozone depletion in the twentieth century.

The order is plasmid (1952), DNA double helix (1953), DNA fingerprinting (1984) and the cloning of Dolly (1996). Joshua Lederberg coined the word "plasmid" in 1952 for genetic material that lives outside the chromosome; plasmids later became the main vectors of genetic engineering.

Article 263 lets the President set up an Inter-State Council by order whenever it appears that public interest would be served by it.

Insulin is a protein (peptide) hormone made in the human body by the beta cells of the islets of Langerhans in the pancreas.

After fertilisation, each ovule grows into a seed, and the ovary that holds the ovules grows into the fruit. In flowering plants, a pollen tube carries two male gametes to the ovule.

Gold is a noble metal at the bottom of the reactivity series, so it does not react with oxygen, water or ordinary acids.

Biogas is mostly methane, usually about 50 to 75 percent, and it is the methane that burns with a clean blue flame and no smoke.

In photosynthesis, green plants take carbon dioxide from the air and combine it with water, using sunlight, to make carbohydrates such as glucose.

On 13 April 1919 troops fired without any warning on an unarmed crowd in Jallianwala Bagh, Amritsar, on the orders of Brigadier-General Reginald Dyer.

The breakdown of glucose into pyruvate, called glycolysis, takes place in the cytoplasm (cytosol) of the cell. Glycolysis is the first step of respiration in almost every living cell.

Holothuria, the sea cucumber, is an echinoderm, a non-chordate group, so it never has a notochord at any stage of life.

Burning coal, petrol and diesel releases oxides of sulphur and nitrogen (and carbon), which dissolve in rain water to form acids.

When blood glucose is more than the body needs, the hormone insulin helps convert it into glycogen, which is stored mainly in the liver and the muscles.

Dr Anupam Sharma, Distinguished Scientist and Director General (Technology Management), said at the Bengaluru curtain-raiser that business in the semiconductor-related segment is expected to rise to 200 billion dollars by 2035.

The conclave is being organised jointly by 12 ministries and departments, and the whole exercise is guided by the Principal Scientific Adviser to the Government of India.

The Emerging Science, Technology and Innovation Conclave, shortened to ESTIC-2026, is to be held there from 27 to 29 October 2026, and DRDO will lead its thematic session on semiconductors and next-generation chips.

All three are classic pieces of evidence used to support Alfred Wegener's theory that the continents were once joined. Wegener proposed in 1912 that all continents formed one supercontinent, Pangaea, which later broke apart.

The Great Hornbill lives in tall, evergreen and moist deciduous forests, and the Western Ghats are one of its two main homes in India.

The Digital Single Market Strategy was adopted by the European Commission in May 2015 to extend the EU's single market to the online world.