401. Who is the author of the book ‘Discovery of India’?
A) Mahatma Gandhi
B) Dr. B.R. Ambedkar
C) Jawaharlal Nehru ✅
D) Rabindranath Tagore
📘 Explanation: Jawaharlal Nehru wrote Discovery of India during his imprisonment in 1942.
402. What is the capital of Mizoram?
A) Imphal
B) Aizawl ✅
C) Shillong
D) Itanagar
📘 Explanation: Aizawl is the capital city of Mizoram.
403. Who was the first woman Governor of an Indian state?
A) Sarojini Naidu ✅
B) Indira Gandhi
C) Sucheta Kriplani
D) Vijayalakshmi Pandit
📘 Explanation: Sarojini Naidu was the Governor of Uttar Pradesh, making her the first woman governor in India.
404. Which gas is used in the preparation of soda water?
A) Oxygen
B) Carbon Dioxide ✅
C) Hydrogen
D) Nitrogen
📘 Explanation: Soda water is made by dissolving CO₂ under pressure.
405. Which river flows through the Grand Canyon in the USA?
A) Mississippi
B) Colorado ✅
C) Missouri
D) Columbia
📘 Explanation: The Grand Canyon was formed by erosion from the Colorado River.
406. When is National Science Day celebrated in India?
A) 5 June
B) 11 May
C) 28 February ✅
D) 15 August
📘 Explanation: It marks the discovery of the Raman Effect by C.V. Raman on 28 Feb 1928.
407. Which metal is the best conductor of electricity?
A) Copper
B) Silver ✅
C) Aluminium
D) Gold
📘 Explanation: Silver is the most efficient conductor of electricity.
408. The largest gland in the human body is:
A) Pancreas
B) Liver ✅
C) Thyroid
D) Adrenal
📘 Explanation: The liver is the largest internal gland in the human body.
409. Which is the official language of the Indian Union?
A) Hindi ✅
B) English
C) Sanskrit
D) Urdu
📘 Explanation: Hindi in Devanagari script is the official language as per Article 343.
410. Which country gifted the Statue of Liberty to the USA?
A) France ✅
B) UK
C) Canada
D) Germany
📘 Explanation: France gifted it in 1886 to celebrate American independence.
411. Which is the longest bone in the human body?
A) Tibia
B) Spine
C) Femur ✅
D) Radius
📘 Explanation: The femur or thigh bone is the longest and strongest bone.
412. Who was the first Indian to go into space?
A) Rakesh Sharma ✅
B) Kalpana Chawla
C) Sunita Williams
D) Vikram Sarabhai
📘 Explanation: Rakesh Sharma flew aboard Soyuz T-11 in 1984.
413. Who appoints the Chief Election Commissioner of India?
A) Prime Minister
B) Parliament
C) President on advice of PM
D) President ✅
📘 Explanation: The CEC is appointed by the President under Article 324.
414. What is the currency of Japan?
A) Yuan
B) Yen ✅
C) Won
D) Dollar
📘 Explanation: Japan’s currency is the Yen (JPY).
415. Which vitamin helps in blood clotting?
A) Vitamin K ✅
B) Vitamin A
C) Vitamin B12
D) Vitamin C
📘 Explanation: Vitamin K plays a key role in coagulation (blood clotting).
416. Which Indian state has the longest coastline?
A) Tamil Nadu
B) Andhra Pradesh
C) Gujarat ✅
D) Maharashtra
📘 Explanation: Gujarat has the longest coastline of about 1600 km.
417. Who was known as the 'Frontier Gandhi'?
A) Bhagat Singh
B) Khan Abdul Ghaffar Khan ✅
C) Mangal Pandey
D) Maulana Azad
📘 Explanation: A close ally of Gandhi, Ghaffar Khan promoted non-violence among Pashtuns.
418. What is the full form of ISRO?
A) Indian Science Research Organization
B) International Space Research Office
C) Indian Space Research Organisation ✅
D) Indian Satellite Research Office
📘 Explanation: ISRO is India’s national space agency.
419. Which organ purifies blood in the human body?
A) Heart
B) Kidney ✅
C) Liver
D) Lungs
📘 Explanation: Kidneys filter and remove waste from the blood.
420. Who was the last Governor-General of India?
A) Lord Mountbatten
B) C. Rajagopalachari ✅
C) Lord Linlithgow
D) Dr. Rajendra Prasad
📘 Explanation: C. Rajagopalachari was the last and only Indian Governor-General after independence.
421. Which city is known as the Pink City of India?
A) Udaipur
B) Jodhpur
C) Jaipur ✅
D) Bikaner
📘 Explanation: Jaipur is called the Pink City due to the color of its historic buildings.
422. Which is the smallest planet in our solar system?
A) Mars
B) Mercury ✅
C) Venus
D) Pluto
📘 Explanation: Mercury is the smallest planet in the solar system.
423. Where is the headquarters of the World Health Organization (WHO)?
A) New York
B) Paris
C) Geneva ✅
D) Brussels
📘 Explanation: WHO is headquartered in Geneva, Switzerland.
424. Which is the deepest ocean in the world?
A) Atlantic
B) Indian
C) Arctic
D) Pacific ✅
📘 Explanation: The Pacific Ocean is the deepest and largest ocean.
425. The instrument used to measure blood pressure is called:
A) Thermometer
B) Sphygmomanometer ✅
C) Barometer
D) Anemometer
📘 Explanation: Sphygmomanometer measures blood pressure.
426. Who discovered the cell?
A) Anton van Leeuwenhoek
B) Robert Hooke ✅
C) Darwin
D) Watson
📘 Explanation: Hooke discovered cells in 1665 using a microscope.
427. What is the boiling point of water at sea level?
A) 50°C
B) 90°C
C) 100°C ✅
D) 120°C
📘 Explanation: Water boils at 100°C at 1 atmospheric pressure.
428. Who was the founder of the Arya Samaj?
A) Raja Ram Mohan Roy
B) Swami Vivekananda
C) Swami Dayananda Saraswati ✅
D) B.G. Tilak
📘 Explanation: Arya Samaj was founded in 1875 by Swami Dayananda Saraswati.
429. In which year was the first General Election held in India?
A) 1951–52 ✅
B) 1947
C) 1950
D) 1955
📘 Explanation: India’s first general election took place in 1951–52.
430. Who is called the Father of Indian Green Revolution?
A) Verghese Kurien
B) M.S. Swaminathan ✅
C) C. Subramaniam
D) Norman Borlaug
📘 Explanation: M.S. Swaminathan led India's Green Revolution in agriculture.
431. Who is the chairman of the Rajya Sabha?
A) Prime Minister
B) Vice President of India ✅
C) President of India
D) Speaker of Lok Sabha
📘 Explanation: As per the Constitution, Vice President is the ex-officio Chairperson.
432. Which planet is known as the Red Planet?
A) Jupiter
B) Venus
C) Mars ✅
D) Mercury
📘 Explanation: Mars appears red due to iron oxide on its surface.
433. Which country is the largest producer of coffee in the world?
A) Vietnam
B) Colombia
C) India
D) Brazil ✅
📘 Explanation: Brazil leads in global coffee production.
434. Which monument is called the Black Taj Mahal?
A) Bibi Ka Maqbara
B) Tomb of Shah Nawaz Khan ✅
C) Mehtab Bagh
D) Fatehpur Sikri
📘 Explanation: The Tomb of Shah Nawaz Khan is popularly called the Black Taj.
435. Which is the national aquatic animal of India?
A) Blue Whale
B) River Dolphin ✅
C) Sea Turtle
D) Crocodile
📘 Explanation: The Gangetic River Dolphin is India’s national aquatic animal.
436. Who was the first woman President of India?
A) Pratibha Patil ✅
B) Sarojini Naidu
C) Indira Gandhi
D) Sucheta Kriplani
📘 Explanation: Pratibha Patil became the first woman President in 2007.
437. The longest river in India is:
A) Yamuna
B) Ganga ✅
C) Narmada
D) Brahmaputra
📘 Explanation: Ganga is the longest river within India.
438. Which gas is known as laughing gas?
A) Carbon dioxide
B) Nitrogen
C) Nitrous oxide ✅
D) Ammonia
📘 Explanation: N₂O (nitrous oxide) causes a euphoric effect and is used as an anesthetic.
439. Which Indian city is known as the Silicon Valley of India?
A) Hyderabad
B) Pune
C) Gurugram
D) Bengaluru ✅
📘 Explanation: Bengaluru is home to numerous tech companies and startups.
440. Who gave the slogan “Do or Die”?
A) Netaji Subhas Chandra Bose
B) Bhagat Singh
C) Mahatma Gandhi ✅
D) Jawaharlal Nehru
📘 Explanation: Gandhi gave this slogan during the Quit India Movement in 1942.
441. Who was the first Indian to win an individual Olympic gold medal?
A) Milkha Singh
B) P.T. Usha
C) Abhinav Bindra ✅
D) Leander Paes
📘 Explanation: Abhinav Bindra won India’s first individual Olympic gold in shooting (2008).
442. What is the capital of Sri Lanka?
A) Kandy
B) Jaffna
C) Sri Jayawardenepura Kotte ✅
D) Colombo
📘 Explanation: Sri Jayawardenepura Kotte is the official capital; Colombo is the commercial capital.
443. Who was the author of the book Discovery of India?
A) B.R. Ambedkar
B) Mahatma Gandhi
C) Jawaharlal Nehru ✅
D) Rabindranath Tagore
📘 Explanation: Nehru wrote this during his imprisonment in 1942–1946.
444. Which river is known as the Dakshina Ganga or Ganga of the South?
A) Krishna
B) Godavari
C) Kaveri ✅
D) Narmada
📘 Explanation: The Kaveri river is sacred and vital in South India.
445. Which Article of the Indian Constitution abolishes untouchability?
A) Article 14
B) Article 15
C) Article 17 ✅
D) Article 21
📘 Explanation: Article 17 explicitly abolishes untouchability.
446. Which Indian missile is also known as Agni-V?
A) Short-range ballistic missile
B) Cruise missile
C) Intercontinental Ballistic Missile (ICBM) ✅
D) Air-to-air missile
📘 Explanation: Agni-V is India’s long-range nuclear-capable ICBM.
447. Which vitamin helps in clotting of blood?
A) Vitamin A
B) Vitamin C
C) Vitamin K ✅
D) Vitamin D
📘 Explanation: Vitamin K activates proteins for blood clotting.
448. Which of the following is not a Fundamental Right?
A) Right to Equality
B) Right to Property
C) Right to Work ✅
D) Right to Freedom
📘 Explanation: Right to Work is a Directive Principle, not a Fundamental Right.
449. What is the national emblem of India adopted from?
A) Qutub Minar
B) Konark Sun Temple
C) Lion Capital of Ashoka at Sarnath ✅
D) Elephanta Caves
📘 Explanation: The emblem is derived from Ashoka’s Lion Capital.
450. Which of the following is used in pencils?
A) Graphite ✅
B) Charcoal
C) Lead
D) Silicon
📘 Explanation: Pencils contain graphite, not actual lead.
451. Who is the first Indian woman to win an Olympic medal?
A) P.T. Usha
B) Karnam Malleswari ✅
C) Mary Kom
D) Saina Nehwal
📘 Explanation: Karnam won bronze in weightlifting at Sydney 2000.
452. Who appoints the Chief Minister of a state in India?
A) President
B) Prime Minister
C) Governor ✅
D) Chief Justice
📘 Explanation: The Governor appoints the CM, usually leader of majority party.
453. What is the main component of natural gas?
A) Ethane
B) Methane ✅
C) Butane
D) Propane
📘 Explanation: Natural gas mainly consists of methane (CH₄).
454. Where is India's first space observatory Astrosat located?
A) Mumbai
B) Delhi
C) Sriharikota ✅
D) Bengaluru
📘 Explanation: Astrosat was launched from Sriharikota by ISRO in 2015.
455. Which dynasty built the famous Khajuraho temples?
A) Maurya
B) Chandela ✅
C) Gupta
D) Mughal
📘 Explanation: Chandela rulers built these between 950–1050 CE.
456. What is the chemical name of Baking Soda?
A) Sodium carbonate
B) Sodium bicarbonate ✅
C) Calcium carbonate
D) Ammonium chloride
📘 Explanation: Baking soda is sodium bicarbonate (NaHCO₃).
457. Who wrote the book Poverty and Un-British Rule in India?
A) Mahatma Gandhi
B) B.G. Tilak
C) Dadabhai Naoroji ✅
D) C.R. Das
📘 Explanation: Naoroji explained the ‘drain of wealth’ theory in this book.
458. Who is the constitutional head of the Indian Union?
A) Prime Minister
B) Vice President
C) President ✅
D) Chief Justice
📘 Explanation: The President is the ceremonial head as per Constitution.
459. What is the smallest bone in the human body?
A) Femur
B) Radius
C) Stapes ✅
D) Ulna
📘 Explanation: Stapes is in the middle ear and is the smallest bone.
460. Which Indian state has the longest coastline?
A) Kerala
B) Tamil Nadu
C) Gujarat ✅
D) Andhra Pradesh
📘 Explanation: Gujarat has the longest coastline in India (~1,600 km).
461. Which day is celebrated as World Environment Day?
A) June 1
B) June 5 ✅
C) July 5
D) June 15
📘 Explanation: June 5 is celebrated globally to raise awareness about environmental protection.
462. Which part of the plant conducts photosynthesis?
A) Root
B) Stem
C) Leaf ✅
D) Flower
📘 Explanation: Leaves contain chlorophyll and carry out photosynthesis.
463. Who is known as the Father of the Indian Constitution?
A) Jawaharlal Nehru
B) Dr. B.R. Ambedkar ✅
C) Sardar Patel
D) Rajendra Prasad
📘 Explanation: Dr. Ambedkar was the chairman of the Drafting Committee.
464. Which planet is known as the Red Planet?
A) Venus
B) Jupiter
C) Mars ✅
D) Mercury
📘 Explanation: Mars is red due to iron oxide on its surface.
465. What is the currency of Bangladesh?
A) Rupee
B) Taka ✅
C) Riyal
D) Lira
📘 Explanation: The official currency of Bangladesh is Bangladeshi Taka.
466. Who discovered the Law of Gravitation?
A) Einstein
B) Galileo
C) Newton ✅
D) Pascal
📘 Explanation: Isaac Newton formulated the universal law of gravitation.
467. Which instrument is used to measure earthquakes?
A) Thermometer
B) Seismograph ✅
C) Barometer
D) Anemometer
📘 Explanation: A seismograph records the intensity and duration of earthquakes.
468. Who was the first President of Independent India?
A) Rajendra Prasad ✅
B) B.R. Ambedkar
C) Jawaharlal Nehru
D) S. Radhakrishnan
📘 Explanation: Dr. Rajendra Prasad served as the first President (1950–1962).
469. What is the function of red blood cells?
A) Fight infections
B) Clot blood
C) Transport oxygen ✅
D) Produce hormones
📘 Explanation: RBCs carry oxygen from the lungs to the rest of the body.
470. Who among the following gave the slogan “Inquilab Zindabad”?
A) Bhagat Singh ✅
B) Subhash Chandra Bose
C) Bal Gangadhar Tilak
D) Chandrashekhar Azad
📘 Explanation: Bhagat Singh popularized this slogan meaning "Long Live the Revolution".
471. Which Mughal Emperor built the Red Fort in Delhi?
A) Akbar
B) Humayun
C) Shah Jahan ✅
D) Aurangzeb
📘 Explanation: Shah Jahan built the Red Fort in the 17th century.
472. Which state is the largest producer of wheat in India?
A) Punjab
B) Uttar Pradesh ✅
C) Haryana
D) Bihar
📘 Explanation: UP is the top wheat-producing state due to fertile soil and irrigation.
473. Which planet is closest to the Sun?
A) Venus
B) Mars
C) Mercury ✅
D) Earth
📘 Explanation: Mercury is the innermost and smallest planet in our solar system.
474. Who is the Supreme Commander of the Indian Armed Forces?
A) Defence Minister
B) President of India ✅
C) Prime Minister
D) Chief of Army Staff
📘 Explanation: The President holds the highest position in defense hierarchy.
475. What is the primary source of energy on Earth?
A) Wind
B) Water
C) Sun ✅
D) Coal
📘 Explanation: The Sun is the ultimate source of energy for all ecosystems.
476. Which of these is not a Union Territory?
A) Lakshadweep
B) Sikkim ✅
C) Puducherry
D) Andaman and Nicobar Islands
📘 Explanation: Sikkim is a full-fledged state, not a UT.
477. In which year did India become a Republic?
A) 1947
B) 1952
C) 1950 ✅
D) 1949
📘 Explanation: India became a Republic on 26th January 1950.
478. Who invented the telephone?
A) Thomas Edison
B) Alexander Graham Bell ✅
C) James Watt
D) Marconi
📘 Explanation: Bell patented the first practical telephone in 1876.
479. What is the SI unit of pressure?
A) Newton
B) Joule
C) Watt
D) Pascal ✅
📘 Explanation: Pascal (Pa) is the SI unit of pressure (N/m²).
480. What is the minimum age to become the Prime Minister of India?
A) 21
B) 30
C) 25 ✅
D) 35
📘 Explanation: The minimum age is 25 years if elected to Lok Sabha.
481. Who founded the Brahmo Samaj?
A) Dayanand Saraswati
B) Swami Vivekananda
C) Raja Ram Mohan Roy ✅
D) Ishwar Chandra Vidyasagar
📘 Explanation: Raja Ram Mohan Roy founded Brahmo Samaj in 1828 to reform Hindu society.
482. Which gas is essential for photosynthesis?
A) Oxygen
B) Carbon dioxide ✅
C) Nitrogen
D) Hydrogen
📘 Explanation: Plants use carbon dioxide and sunlight to produce food.
483. What is the capital of Mizoram?
A) Imphal
B) Aizawl ✅
C) Kohima
D) Shillong
📘 Explanation: Aizawl is the capital and largest city of Mizoram.
484. The Battle of Plassey was fought in which year?
A) 1757 ✅
B) 1764
C) 1857
D) 1773
📘 Explanation: It was fought in 1757 between the British East India Company and Siraj-ud-Daulah.
485. Which organ is responsible for blood purification in the human body?
A) Heart
B) Lungs
C) Kidney ✅
D) Liver
📘 Explanation: Kidneys filter waste from blood and maintain fluid balance.
486. Who wrote the book Discovery of India?
A) M.K. Gandhi
B) Jawaharlal Nehru ✅
C) Rajendra Prasad
D) B.R. Ambedkar
📘 Explanation: Nehru wrote it in 1944 while imprisoned, explaining India’s rich history.
487. Which metal is liquid at room temperature?
A) Iron
B) Copper
C) Mercury ✅
D) Aluminium
📘 Explanation: Mercury is the only metal that remains liquid at standard conditions.
488. The term ‘Green Revolution’ is associated with—
A) Agricultural development ✅
B) Industrialization
C) Environmental movement
D) Political change
📘 Explanation: It refers to the increase in food grain production using HYV seeds, fertilizers, and irrigation.
489. Who was the first Indian woman in space?
A) Kalpana Chawla ✅
B) Sunita Williams
C) Indira Gandhi
D) Rani Gaidinliu
📘 Explanation: Kalpana Chawla flew on the Space Shuttle Columbia in 1997.
490. Which article of the Indian Constitution provides for Right to Education?
A) Article 19
B) Article 21
C) Article 21A ✅
D) Article 32
📘 Explanation: Article 21A makes education a fundamental right for children aged 6–14.
491. Which of the following rivers flows into the Arabian Sea?
A) Narmada ✅
B) Yamuna
C) Ganga
D) Kosi
📘 Explanation: The Narmada flows westward and drains into the Arabian Sea.
492. What is the full form of GDP?
A) Gross Domestic Price
B) Gross Domestic Product ✅
C) General Development Plan
D) Government Data Provision
📘 Explanation: GDP measures the total value of goods/services produced in a country in a year.
493. Which Indian state has the longest coastline?
A) Kerala
B) Maharashtra
C) Gujarat ✅
D) Andhra Pradesh
📘 Explanation: Gujarat has the longest coastline, about 1600 km.
494. What is the chemical formula for common salt?
A) NaCO₃
B) NaCl ✅
C) KCl
D) NaOH
📘 Explanation: Sodium chloride (NaCl) is the chemical name for table salt.
495. What is the capital of Canada?
A) Toronto
B) Vancouver
C) Ottawa ✅
D) Montreal
📘 Explanation: Ottawa is the political and administrative capital of Canada.
496. Who is the present Comptroller and Auditor General (CAG) of India?
A) Vinod Rai
B) Shashi Kant Sharma
C) Girish Chandra Murmu ✅
D) Rajiv Mehrishi
📘 Explanation: GC Murmu is the 14th CAG of India since 2020.
497. What is the function of the ozone layer?
A) Reflect sunlight
B) Absorb harmful UV rays ✅
C) Trap oxygen
D) Produce carbon dioxide
📘 Explanation: The ozone layer protects life by absorbing the Sun’s harmful ultraviolet radiation.
498. Which Indian state is known as the Spice Garden of India?
A) Tamil Nadu
B) Kerala ✅
C) Karnataka
D) Assam
📘 Explanation: Kerala is famous for its spice plantations like cardamom, pepper, and cloves.
499. Which vitamin helps in blood clotting?
A) A
B) B
C) C
D) K ✅
📘 Explanation: Vitamin K is essential for the synthesis of clotting factors.
500. Who won the Nobel Peace Prize in 2014 along with Malala Yousafzai?
A) Kailash Satyarthi ✅
B) Kiran Bedi
C) Arvind Kejriwal
D) Anna Hazare
📘 Explanation: Kailash Satyarthi was recognized for his fight against child labor.
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