General Knowledge is a great way to keep your mind sharp, improve awareness, and stay updated about the world around you. At CroQuiz.com, we believe learning should always be fun. That’s why we have prepared this Ultimate GK Quiz with 30 multiple-choice questions, each with a clear explanation so you can learn while you test yourself.
This quiz is perfect for students, professionals, or anyone who loves to challenge themselves.
How to Take the Quiz
- Read each question carefully.
- Choose the correct option from the four given.
- Check the answer and read the explanation to understand why it is correct.
The Quiz: 30 GK Questions with Explanations
- Which is the largest continent in the world?
a) Africa
b) Asia
c) Europe
d) Antarctica
Answer: b) Asia
Explanation: Asia is the largest continent by both area and population. It covers about 30% of the Earth’s land area and is home to more than 4 billion people.
- Who wrote the famous book “The Alchemist”?
a) J.K. Rowling
b) Paulo Coelho
c) Mark Twain
d) Ernest Hemingway
Answer: b) Paulo Coelho
Explanation: Paulo Coelho, a Brazilian author, wrote “The Alchemist,” a philosophical book about pursuing your dreams, translated into many languages worldwide.
- What is the chemical symbol for water?
a) H2O
b) CO2
c) O2
d) NaCl
Answer: a) H2O
Explanation: Water is composed of two hydrogen atoms and one oxygen atom, which is why its chemical formula is H2O.
- Which country hosted the 2020 Summer Olympics?
a) China
b) Japan
c) Brazil
d) United Kingdom
Answer: b) Japan
Explanation: The 2020 Summer Olympics were held in Tokyo, Japan, in 2021 due to the COVID-19 pandemic delay.
- Who is known as the Father of the Nation in India?
a) Jawaharlal Nehru
b) Subhash Chandra Bose
c) Mahatma Gandhi
d) Sardar Patel
Answer: c) Mahatma Gandhi
Explanation: Mahatma Gandhi led India’s independence movement using non-violent civil disobedience, earning him the title “Father of the Nation.”
- What is the capital city of Australia?
a) Sydney
b) Melbourne
c) Canberra
d) Brisbane
Answer: c) Canberra
Explanation: Canberra is the capital of Australia, chosen as a compromise between Sydney and Melbourne in 1908.
- Which planet is known as the Red Planet?
a) Venus
b) Mars
c) Jupiter
d) Saturn
Answer: b) Mars
Explanation: Mars is called the Red Planet because of the reddish appearance caused by iron oxide (rust) on its surface.
- Who invented the telephone?
a) Alexander Graham Bell
b) Thomas Edison
c) Nikola Tesla
d) Guglielmo Marconi
Answer: a) Alexander Graham Bell
Explanation: Alexander Graham Bell patented the first practical telephone in 1876, revolutionizing communication.
- What is the smallest prime number?
a) 0
b) 1
c) 2
d) 3
Answer: c) 2
Explanation: 2 is the smallest prime number and the only even
- Which gas do humans exhale?
a) Oxygen
b) Carbon Dioxide
c) Nitrogen
d) Helium
Answer: b) Carbon Dioxide
Explanation: Humans inhale oxygen for respiration and exhale carbon dioxide as a waste product of metabolism.
- Which Indian state is known as the Land of Five Rivers?
a) Rajasthan
b) Punjab
c) Gujarat
d) Haryana
Answer: b) Punjab
Explanation: Punjab is called the Land of Five Rivers because of the five rivers that flow through it: Sutlej, Beas, Ravi, Chenab, and Jhelum.
- What is the currency of Japan?
a) Yen
b) Yuan
c) Dollar
d) Won
Answer: a) Yen
Explanation: Yen is the official currency of Japan, widely used in international finance.
- Who discovered penicillin?
a) Alexander Fleming
b) Marie Curie
c) Louis Pasteur
d) Isaac Newton
Answer: a) Alexander Fleming
Explanation: Alexander Fleming discovered penicillin in 1928, which became the first widely used antibiotic.
- Which river is the longest in the world?
a) Amazon
b) Nile
c) Yangtze
d) Mississippi
Answer: b) Nile
Explanation: The Nile River, flowing in northeastern Africa, is approximately 6650 km long, making it the longest river in the world.
- Which element has the chemical symbol ‘Fe’?
a) Iron
b) Fluorine
c) Fermium
d) Francium
Answer: a) Iron
Explanation: ‘Fe’ comes from the Latin word ‘Ferrum’ and represents iron in the periodic table.
- Who was the first President of India?
a) Rajendra Prasad
b) Zakir Hussain
c) R. Venkataraman
d) Neelam Sanjiva Reddy
Answer: a) Rajendra Prasad
Explanation: Dr. Rajendra Prasad was the first President of India and served from 1950 to 1962.
- What is the national animal of India?
a) Lion
b) Tiger
c) Elephant
d) Peacock
Answer: b) Tiger
Explanation: The tiger is the national animal of India, symbolizing strength and power.
- Which planet is closest to the Sun?
a) Mercury
b) Venus
c) Earth
d) Mars
Answer: a) Mercury
Explanation: Mercury is the closest planet to the Sun, orbiting at an average distance of 57.9 million km.
- Who painted the Mona Lisa?
a) Leonardo da Vinci
b) Vincent van Gogh
c) Pablo Picasso
d) Michelangelo
Answer: a) Leonardo da Vinci
Explanation: Leonardo da Vinci painted the Mona Lisa, one of the most famous paintings in the world, during the early 16th century.
- What is the boiling point of water at sea level?
a) 50°C
b) 75°C
c) 100°C
d) 125°C
Answer: c) 100°C
Explanation: Water boils at 100°C at sea level under normal atmospheric pressure.
- Which Indian freedom fighter gave the slogan “Jai Jawan Jai Kisan”?
a) Mahatma Gandhi
b) Jawaharlal Nehru
c) Lal Bahadur Shastri
d) Sardar Vallabhbhai Patel
Answer: c) Lal Bahadur Shastri
Explanation: Lal Bahadur Shastri coined the slogan to motivate soldiers and farmers, emphasizing their importance in nation-building.
- Which gas is most abundant in the Earth’s atmosphere?
a) Oxygen
b) Carbon Dioxide
c) Nitrogen
d) Hydrogen
Answer: c) Nitrogen
Explanation: Nitrogen makes up about 78% of the Earth’s atmosphere, making it the most abundant gas.
- Which country is known as the Land of the Rising Sun?
a) China
b) Japan
c) Thailand
d) South Korea
Answer: b) Japan
Explanation: Japan is called the Land of the Rising Sun because it lies to the east of the Asian continent, where the sun rises first.
- Who is the author of “Pride and Prejudice”?
a) Emily Bronte
b) Jane Austen
c) Charles Dickens
d) Mark Twain
Answer: b) Jane Austen
Explanation: Jane Austen, an English novelist, wrote “Pride and Prejudice,” which is one of the most popular classic novels in literature.
- Which city is called the Big Apple?
a) Los Angeles
b) New York
c) Chicago
d) San Francisco
Answer: b) New York
Explanation: New York City is nicknamed the Big Apple, symbolizing opportunity and prominence.
- Who was the first man to walk on the Moon?
a) Buzz Aldrin
b) Neil Armstrong
c) Yuri Gagarin
d) Michael Collins
Answer: b) Neil Armstrong
Explanation: Neil Armstrong became the first human to walk on the Moon on 20 July 1969 during the Apollo 11 mission.
- Which organ in the human body is primarily responsible for detoxification?
a) Kidney
b) Liver
c) Lungs
d) Heart
Answer: b) Liver
Explanation: The liver detoxifies harmful substances from the blood and helps in metabolism and digestion.
- Which language has the most native speakers in the world?
a) English
b) Spanish
c) Mandarin
d) Hindi
Answer: c) Mandarin
Explanation: Mandarin Chinese has the highest number of native speakers in the world, with over a billion people speaking it.
- Which is the largest ocean on Earth?
a) Atlantic
b) Indian
c) Arctic
d) Pacific
Answer: d) Pacific
Explanation: The Pacific Ocean is the largest ocean, covering more than 63 million square miles.
- Which is the smallest country in the world by area?
a) Monaco
b) Vatican City
c) San Marino
d) Liechtenstein
Answer: b) Vatican City
Explanation: Vatican City is the smallest country in the world, covering only 44 hectares, and it is the spiritual center of the Catholic Church.
Conclusion
We hope you enjoyed this Ultimate General Knowledge Quiz and learned something new along the way. Regularly testing yourself with quizzes like this not only sharpens your mind but also improves your awareness about the world.
If you found this quiz challenging or interesting, try it again after a few days and see how much you have improved. You can also share this quiz with your friends and family to challenge them and see who scores the highest.
Stay curious, keep learning, and check back on CroQuiz.com for more exciting quizzes to test your knowledge across different topics. Knowledge is power, and every quiz you take brings you one step closer to becoming a GK champion.