General Knowledge For competitive exam

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Here we are describe most of the general knowledge for competitive exam;

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Who is known as the Father of the Indian Constitution?
Answer : Dr. B. R. Ambedkar
Explanation: He was the Chairman of the Drafting Committee of the Constitution.
Which is the longest river in India?
Answer : River Ganga
Explanation: It flows about 2,525 km and supports millions of people.
What is the capital of Australia?
Answer : Canberra
Explanation: It was chosen as a compromise between Sydney and Melbourne.
Which planet is known as the Red Planet?
Answer : Mars
Explanation: Due to iron oxide (rust) on its surface.
Who wrote the national anthem of India?
Answer : Rabindranath Tagore
Explanation: “Jana Gana Mana” was adopted in 1950.
What is the chemical formula of water?
Answer : H₂O
Explanation: Two hydrogen atoms and one oxygen atom form water.
Which vitamin is produced in the human body by sunlight?
Answer : Vitamin D
Explanation: Sunlight triggers Vitamin D synthesis in skin.
Who was the first Prime Minister of India?
Answer : Jawaharlal Nehru
Explanation: He served from 1947 to 1964.
What is the national animal of India?
Answer : Tiger
Explanation: Represents strength, power, and wildlife heritage.
Which gas is most abundant in Earth’s atmosphere?
Answer : Nitrogen (78%)
Explanation: Essential for plant growth and life cycle.
What is the smallest unit of life?
Answer : Cell
Explanation: All living organisms are made of cells.
Who discovered gravity?
Answer : Sir Isaac Newton
Explanation: He observed a falling apple leading to the theory.
Which is the largest ocean in the world?
Answer : Pacific Ocean
Explanation: Covers more than one-third of Earth’s surface.
What is the currency of Japan?
Answer : Yen
Explanation: It is one of the most traded currencies globally.
Which Indian city is known as the Silicon Valley of India?
Answer : Bengaluru
Explanation: Major hub of IT companies and startups.
How many Fundamental Rights are there in India?
Answer : Six
Explanation: Originally seven, Right to Property was removed.
Which metal is liquid at room temperature?
Answer : Mercury
Explanation: Used in thermometers and scientific instruments.
What is the full form of CPU?
Answer : Central Processing Unit
Explanation: It is the brain of the computer.
Who was known as the Iron Man of India?
Answer : Sardar Vallabhbhai Patel
Explanation: He united princely states into India.
What is the SI unit of force?
Answer : Newton
Explanation: Named after Sir Isaac Newton.
Which blood group is known as the universal donor?
Answer : O negative
Explanation: It can be given to all blood groups.
Which day is celebrated as World Environment Day?
Answer : 5 June
Explanation: Promotes environmental awareness worldwide.
Which is the highest mountain peak in the world?
Answer : Mount Everest
Explanation: Located in the Himalayas on Nepal–China border.
Who invented the telephone?
Answer : Alexander Graham Bell
Explanation: Patented the first practical telephone.
What is the national flower of India?
Answer : Lotus
Explanation: Symbol of purity, hope, and spirituality.
Which is the largest continent in the world? Answer: Asia. Explanation: Asia covers about 30% of the Earth’s land area and has the highest population.
Who invented the telephone?
Answer: Alexander Graham Bell
Explanation: He patented the first practical telephone in 1876.
Which planet is called the Red Planet? Answer: Mars. Explanation: Iron oxide on its surface gives it a reddish appearance.
Which vitamin is produced by sunlight in humans? Answer: Vitamin D. Explanation: UV rays in sunlight trigger Vitamin D synthesis in skin.
Capital of Australia? Answer: Canberra. Explanation: Chosen as a compromise between Sydney and Melbourne.
Largest planet in the Solar System?
Answer: Jupiter
Explanation: Gas giant with a diameter of about 142,984 km.
Which gas is most abundant in the Earth’s atmosphere? Answer: Nitrogen. Explanation: Makes up 78% of the atmosphere, essential for plant and animal life.
Smallest unit of life?
Answer: Cell
Explanation: All living organisms are made up of cells.
Which ocean is the largest in the world?
Answer: Pacific Ocean
Explanation: Covers more than one-third of Earth’s surface.
Which desert is the largest in the world?
Answer: Sahara Desert
Explanation: Covers most of North Africa, around 9.2 million km².
Blood group known as universal donor?Answer: O negative. Explanation: Can be transfused to any blood group safely.
Who wrote the Ramayana?
Answer: Valmiki
Explanation: Ancient Sanskrit epic narrating the life of Lord Rama.
First satellite of India?
Answer: Aryabhata
Explanation: Launched in 1975, marked India’s entry into space research.
International Yoga Day is celebrated on? Answer: 21 Jun. Explanation: Adopted by the UN in 2014 to promote health and well-being.
Who was the first woman Prime Minister of India? Answer: Indira Gandhi. Explanation: She served as Prime Minister from 1966–1977 and 1980–1984, being the first female leader of India.
What is the national tree of India?
Answer: Banyan tree
Explanation: Represents immortality and longevity; found commonly across India.
Which is the smallest country in the world?
Answer: Vatican City
Explanation: Area of 0.49 km², an independent city-state in Rome, Italy.
Who is known as the Father of Indian Railways?
Answer: Lord Dalhousie
Explanation: Introduced railways in India in 1853 to improve trade and mobility.
Which planet is nearest to the Sun?
Answer: Mercury
Explanation: It completes an orbit around the Sun in just 88 Earth days.
Who wrote “Discovery of India”?
Answer: Jawaharlal Nehru
Explanation: Written during his imprisonment in 1942–1946; describes India’s rich history and culture.
What is the national aquatic animal of India?
Answer: Ganges River Dolphin
Explanation: Found in the Ganges-Brahmaputra river system; symbolizes freshwater ecosystems.
Who was the first President of India?
Answer: Dr. Rajendra Prasad
Explanation: Served from 1950 to 1962; only president to serve two terms.
Which is the largest island in the world?
Answer: Greenland
Explanation: Covers 2.16 million km²; mostly covered with ice.
What is the boiling point of water at sea level?
Answer: 100°C
Explanation: Standard atmospheric pressure at sea level causes water to boil at this temperature.
Who discovered penicillin?
Answer: Alexander Fleming
Explanation: Discovered in 1928; it became the first widely used antibiotic.
Which river is known as the “Sorrow of Bihar”?
Answer: Kosi River
Explanation: Causes frequent floods in Bihar, leading to loss of life and property.
Who is known as the “Missile Man of India”?
Answer: Dr. A.P.J. Abdul Kalam
Explanation: Played a key role in India’s missile development and later became President.
What is the full form of RBI?
Answer: Reserve Bank of India
Explanation: India’s central bank; regulates currency and credit system.
Which gas is responsible for global warming?
Answer: Carbon dioxide (CO₂)
Explanation: Excess CO₂ traps heat in the atmosphere, leading to climate change.
Who founded the Indian National Congress?
Answer: Allan Octavian Hume
Explanation: Founded in 1885 to provide a platform for political dialogue.
Which is the longest river in the world?
Answer: Nile River
Explanation: Approximately 6,650 km, flowing through northeastern Africa.
Which metal is used in thermometers?
Answer: Mercury
Explanation: Liquid at room temperature; expands uniformly with temperature.
Which Indian state is known as the “Land of Rising Sun”?
Answer: Arunachal Pradesh
Explanation: Easternmost state; the first to see the sunrise in India.
Who was the first Indian to win a Nobel Prize?
Answer: Rabindranath Tagore
Explanation: Awarded the Nobel Prize in Literature in 1913 for “Gitanjali.”
Which vitamin deficiency causes rickets?
Answer: Vitamin D
Explanation: Leads to softening and weakening of bones, especially in children.
National currency of India?
Answer: Indian Rupee (₹)
Explanation: Issued and regulated by the Reserve Bank of India.
Who is called the “Father of Modern India”?
Answer: Raja Ram Mohan Roy
Explanation: Social reformer; campaigned against Sati, child marriage, and for women’s education.
Which gas is used in balloons to make them float?
Answer: Helium
Explanation: Lighter than air and non-flammable, making it safe for balloons.
Who wrote the book “Hind Swaraj”?
Answer: Mahatma Gandhi
Explanation: Written in 1909, outlines his vision for India’s independence and self-rule.
Which Indian state is known as the “Land of Rising Sun”?
Answer: Arunachal Pradesh
Explanation: It is the easternmost state of India; first to see the sunrise in the country.
Who was the first Indian woman to go to space?
Answer: Kalpana Chawla
Explanation: She flew aboard the Space Shuttle Columbia in 1997 and 2003.
Who was the first Indian to win an Olympic medal?
Answer: Norman Pritchard
Explanation: Won two silver medals in athletics at the 1900 Paris Olympics.
Which is the largest state in India by area?
Answer: Rajasthan
Explanation: Covers an area of 342,239 km².
Who discovered radioactivity?
Answer: Henri Becquerel
Explanation: Discovered in 1896, paving the way for the study of nuclear physics.
Which Indian state has the longest coastline?
Answer: Gujarat
Explanation: Approximately 1,600 km long, along the Arabian Sea.
Who is called the “Father of the Indian Renaissance”?
Answer: Raja Ram Mohan Roy
Explanation: Advocated social reforms, education, and the abolition of Sati.
Which is the largest desert in India?
Answer: Thar Desert
Explanation: Also called the Great Indian Desert, located in Rajasthan.
Which metal is extracted from bauxite ore?
Answer: Aluminium
Explanation: Bauxite is the principal ore of Aluminium.
Which is the smallest bone in the human body?
Answer: Stapes (in the middle ear)
Explanation: Measures about 3 mm and helps in hearing.
Who is the author of “Geetanjali”?
Answer: Rabindranath Tagore
Explanation: A collection of poems; won the Nobel Prize in Literature in 1913.
National river of India?
Answer: Ganga
Explanation: Considered sacred and flows across northern India.
Who invented the World Wide Web (WWW)?
Answer: Tim Berners-Lee
Explanation: Developed in 1989, it revolutionized communication and information sharing.
Which is the largest freshwater lake in India?
Answer: Vembanad Lake
Explanation: Located in Kerala, it stretches over 203 km².
Who is known as the “Father of Modern Chemistry”?
Answer: Antoine Lavoisier
Explanation: Discovered the role of oxygen in combustion and helped establish the law of conservation of mass.
Which Indian city is called the “Manchester of India”?
Answer: Ahmedabad
Explanation: Known for its textile industry, similar to Manchester in the UK.
Which gas is essential for photosynthesis?
Answer: Carbon dioxide (CO₂)
Explanation: Plants absorb CO₂ to produce food and oxygen.
First Indian woman to win a Nobel Prize?
Answer: Mother Teresa
Explanation: Awarded the Nobel Peace Prize in 1979 for humanitarian work.
Who was the first Indian woman Chief Minister?
Answer: Sucheta Kripalani
Explanation: Became Chief Minister of Uttar Pradesh in 1963.
Which is the largest desert in Asia?
Answer: Gobi Desert
Explanation: Spans northern China and southern Mongolia.
Which element has the chemical symbol ‘Fe’?
Answer: Iron
Explanation: Fe comes from its Latin name Ferrum.
Who is called the “Missile Man of India”?
Answer: Dr. A.P.J. Abdul Kalam
Explanation: Played a crucial role in India’s missile and space programs.
Which is the highest civilian award in India?
Answer: Bharat Ratna
Explanation: Awarded for exceptional service in art, literature, science, and public service.
Which Indian state has the largest forest cover?
Answer: Madhya Pradesh
Explanation: Known as the “Heart of India,” has extensive forested areas and wildlife.
Which Indian state is called the “Land of Five Rivers”? Answer: Punjab. Explanation: Named after the five rivers—Sutlej, Beas, Ravi, Chenab, and Jhelum—that flow through the region.
Who is known as the “Father of Modern Physics”?
Answer: Albert Einstein
Explanation: Developed the theory of relativity, revolutionizing modern physics.
Which is the largest planet in our solar system?
Answer: Jupiter
Explanation: Gas giant with a diameter of about 142,984 km.
Which Indian city is known as the “City of Joy”?
Answer: Kolkata
Explanation: Famous for its cultural heritage, literature, art, and festivals.
Who discovered penicillin?
Answer: Alexander Fleming
Explanation: In 1928, he discovered penicillin, the first widely used antibiotic.
Which is the smallest country in the world?
Answer: Vatican City
Explanation: Covers only 0.49 km² and is an independent city-state in Rome, Italy.
Which river is called the “Ganga of the South”?
Answer: Godavari
Explanation: Longest river in South India; considered sacred like the Ganga in the north.
Who is called the “Father of Indian Space Program”?
Answer: Dr. Vikram Sarabhai
Explanation: Established ISRO and laid the foundation of India’s space program.
Which element has the chemical symbol ‘Na’?
Answer: Sodium
Explanation: Derived from Latin ‘Natrium’; used in everyday compounds like salt (NaCl).
Who wrote the book “The Discovery of India”?
Answer: Jawaharlal Nehru
Explanation: Written during his imprisonment; highlights India’s history, culture, and heritage.
Who was the first woman to climb Mount Everest? Answer: Junko Tabei (Japan). Explanation: Reached the summit on 16 May 1975, becoming the first woman globally.
Which is the largest freshwater lake in India?
Answer: Vembanad Lake
Explanation: Located in Kerala, spreads over 203 km², important for ecology and tourism.