Hard GK Questions For Class 10 with Answers – Challenge your mind with this exciting gk questions designed for Class 10 students! Covering general science, space, earth, biology, physics, chemistry, current affairs, history, and geography, these general knowledge quiz questions test your understanding of complex concepts and recent events. Perfect for exam preparation or sharpening your intellect, this Hard GK Questions For Class 10 with answers offers a deep dive into fascinating topics.
Here are 100 difficult gk questions with answers, split into ten parts, with 10 MCQs each. Ideal for Class 10 students aiming to excel in school quizzes, board exams, or competitive tests, these questions will push your knowledge to the limit!
toc=#(table of content)
Part 1: Hard GK Questions For Class 10 with Answers
| Questions | Answers |
|---|---|
| Which gas, discovered on the sun before Earth, is the second most abundant element in the universe? a) Hydrogen b) Helium c) Oxygen d) Nitrogen | b) Helium - Discovered in solar spectra in 1868. |
| In which year did the Chauri Chaura incident halt Gandhi’s Non-Cooperation Movement? a) 1919 b) 1922 c) 1925 d) 1930 | b) 1922 - Violence led Gandhi to suspend the movement. |
| What is the primary source of energy for Earth’s climate system? a) Geothermal heat b) Solar radiation c) Tidal forces d) Cosmic rays | b) Solar radiation - Drives weather and climate. |
| Which organelle in a plant cell is responsible for photosynthesis? a) Mitochondria b) Nucleus c) Chloroplast d) Golgi apparatus | c) Chloroplast - Contains chlorophyll for photosynthesis. |
| What is the escape velocity required to leave Earth’s gravitational pull? a) 7.92 km/s b) 11.2 km/s c) 15.6 km/s d) 9.8 km/s | b) 11.2 km/s - Speed to escape Earth’s gravity. |
| Which acid is found in the stomach to aid digestion? a) Nitric acid b) Sulfuric acid c) Hydrochloric acid d) Acetic acid | c) Hydrochloric acid - Breaks down food in the stomach. |
| In 2024, which country launched the High Energy Photon Source (HEPS) synchrotron? a) Japan b) China c) USA d) France | b) China - For advanced material research. |
| Which tectonic plate is responsible for the Himalayan mountain range? a) Pacific Plate b) Indo-Australian Plate c) Eurasian Plate d) Both b and c | d) Both b and c - Collision forms the Himalayas. |
| Who discovered the Raman Effect, celebrated on National Science Day? a) Homi Bhabha b) C.V. Raman c) A.P.J. Abdul Kalam d) Vikram Sarabhai | b) C.V. Raman - Honored on February 28. |
| Which process describes the biological decomposition of organic waste under controlled conditions? a) Incineration b) Pyrolysis c) Composting d) Landfilling | c) Composting - Produces organic fertilizer. |
Part 2: Hard GK Questions For Class 10
| Questions | Answers |
|---|---|
| Which planet’s atmosphere is primarily composed of carbon dioxide, causing a greenhouse effect? a) Mars b) Venus c) Jupiter d) Mercury | b) Venus - Thick CO₂ atmosphere traps heat. |
| Who was the chief architect of the Taj Mahal? a) Shah Jahan b) Ustad Ahmad Lahawri c) Ustad Amjad Ali Khan d) Ustad Bismillah Khan | b) Ustad Ahmad Lahawri - Designed the monument. |
| What is the name of the smallest bone in the human body? a) Femur b) Stapes c) Tibia d) Radius | b) Stapes - Located in the middle ear. |
| In physics, what defect causes an image to form in front of the retina? a) Hyperopia b) Presbyopia c) Myopia d) Astigmatism | c) Myopia - Corrected with concave lenses. |
| Which element, with the symbol ‘Au’, is a precious metal? a) Silver b) Gold c) Platinum d) Aluminum | b) Gold - Known for its luster and value. |
| What is the longest river in South America? a) Nile b) Amazon c) Paraná d) Orinoco | b) Amazon - World’s second-longest river. |
| In 2023, which Indian mission achieved a soft landing on the moon’s south pole? a) Chandrayaan-2 b) Chandrayaan-3 c) Mangalyaan-2 d) Aditya-L1 | b) Chandrayaan-3 - First such landing. |
| Which gas is filled in electric bulbs to prevent filament burning? a) Oxygen b) Argon c) Nitrogen d) Helium | b) Argon - Inert gas prolongs bulb life. |
| What is the name of the process where DNA unwinds into single strands? a) Replication b) Transcription c) Denaturation d) Translation | c) Denaturation - Occurs during heating. |
| Which Indian state is home to the Hornbill Festival? a) Nagaland b) Assam c) Manipur d) Arunachal Pradesh | a) Nagaland - Celebrates tribal culture. |
Part 3: Hard GK Questions For Class 10 ( visit QuizQuestions.in for More GK Questions)
| Questions | Answers |
|---|---|
| Which law of Mendel states that alleles segregate independently during gamete formation? a) Law of Dominance b) Law of Segregation c) Law of Independent Assortment d) Law of Variation | c) Law of Independent Assortment - Governs trait inheritance. |
| Which instrument measures the chemical composition of stars? a) Telescope b) Spectroscope c) Barometer d) Hydrometer | b) Spectroscope - Analyzes starlight spectra. |
| In which year was the Gandhi-Irwin Pact signed? a) 1929 b) 1931 c) 1935 d) 1942 | b) 1931 - Ended the Civil Disobedience Movement. |
| What is the primary source of energy for photosynthesis? a) Heat b) Light c) Electricity d) Chemical energy | b) Light - Drives glucose production. |
| Which type of lens is used to correct hypermetropia? a) Concave b) Convex c) Cylindrical d) Bifocal | b) Convex - Focuses image on retina. |
| Which element is essential for the formation of hemoglobin? a) Calcium b) Iron c) Sodium d) Potassium | b) Iron - Binds oxygen in blood. |
| Which biome is characterized by treeless plains and extreme cold? a) Desert b) Tundra c) Savanna d) Taiga | b) Tundra - Found in polar regions. |
| In 2024, which country hosted the G20 Summit? a) Brazil b) India c) South Africa d) Germany | a) Brazil - Held in Rio de Janeiro. |
| Which gas, discovered by Alexander Fleming, is used in medical sterilization? a) Chlorine b) Ethylene oxide c) Ozone d) Hydrogen peroxide | b) Ethylene oxide - Sterilizes equipment. |
| Which strait separates India and Sri Lanka? a) Bering Strait b) Palk Strait c) Malacca Strait d) Gibraltar Strait | b) Palk Strait - Between Tamil Nadu and Jaffna. |
Hard GK Questions For Class 10 with Answers - Part 4
| Questions | Answers |
|---|---|
| Which phenomenon causes the depletion of the ozone layer? a) Greenhouse effect b) Chlorofluorocarbon emissions c) Acid rain d) Deforestation | b) Chlorofluorocarbon emissions - Breaks down ozone. |
| Who was the first Indian woman to go into space? a) Sunita Williams b) Kalpana Chawla c) Tessy Thomas d) Kiran Bedi | b) Kalpana Chawla - In 1997. |
| What is the chemical formula for ozone? a) O₂ b) O₃ c) CO₂ d) N₂O | b) O₃ - Protects from UV rays. |
| Which part of the brain controls involuntary actions like heartbeat? a) Cerebrum b) Cerebellum c) Medulla oblongata d) Hypothalamus | c) Medulla oblongata - Regulates vital functions. |
| What is the SI unit of electric current? a) Volt b) Ampere c) Ohm d) Watt | b) Ampere - Measures current flow. |
| Which river is known as the ‘National River of India’? a) Yamuna b) Ganga c) Brahmaputra d) Godavari | b) Ganga - Cultural and ecological significance. |
| In which year was Nalanda University destroyed by Bakhtiyar Khilji? a) 1193 b) 1200 c) 1235 d) 1258 | a) 1193 - Ancient learning center razed. |
| Which particle is responsible for carrying a positive charge in an atom? a) Electron b) Neutron c) Proton d) Positron | c) Proton - Found in the nucleus. |
| In 2025, what was the theme of National Science Day? a) Science for Sustainability b) Indigenous Technologies for Viksit Bharat c) Women in Science d) Future of Science | b) Indigenous Technologies for Viksit Bharat - Focus on local innovation. |
| Which is the largest island in the world? a) Greenland b) Australia c) Borneo d) Madagascar | a) Greenland - Largest by area. |
Hard GK Questions For Class 10 with Answers - Part 5
| Questions | Answers |
|---|---|
| Which process in stars produces heavier elements like carbon and oxygen? a) Nuclear fission b) Nuclear fusion c) Beta decay d) Alpha decay | b) Nuclear fusion - Powers stars and forms elements. |
| Which historical event occurred in 1842 in India? a) Sepoy Mutiny b) Bundela Revolt c) Champaran Satyagraha d) Dandi Salt March | b) Bundela Revolt - Regional uprising. |
| What is the primary component of xylem tissue in plants? a) Sieve tubes b) Tracheids c) Companion cells d) Parenchyma | b) Tracheids - Conduct water in plants. |
| Which law states that the force between two charges is inversely proportional to the square of their distance? a) Ohm’s Law b) Newton’s Law c) Coulomb’s Law d) Faraday’s Law | c) Coulomb’s Law - Governs electrostatic forces. |
| Which gas is the most abundant in Earth’s atmosphere? a) Oxygen b) Nitrogen c) Carbon dioxide d) Argon | b) Nitrogen - About 78% of the atmosphere. |
| Which country is known as the ‘Roof of the World’? a) Nepal b) Tibet c) Bhutan d) Mongolia | b) Tibet - Due to its high plateau. |
| In 2024, which Indian telescope was used to study a kilonova? a) AstroSat b) GMRT c) Himalayan Chandra Telescope d) Vainu Bappu Telescope | c) Himalayan Chandra Telescope - Observed cosmic explosions. |
| Which type of bond involves the sharing of electrons? a) Ionic b) Covalent c) Metallic d) Hydrogen | b) Covalent - Forms molecules like water. |
| Which ecosystem is most biodiverse? a) Tundra b) Rainforest c) Grassland d) Desert | b) Rainforest - Highest species diversity. |
| Who formulated the universal law of gravitation? a) Albert Einstein b) Isaac Newton c) Galileo Galilei d) Johannes Kepler | b) Isaac Newton - In the 17th century. |
Hard GK Questions For Class 10 with Answers - Part 6
| Questions | Answers |
|---|---|
| Which layer of Earth’s atmosphere contains the ozone layer? a) Troposphere b) Stratosphere c) Mesosphere d) Thermosphere | b) Stratosphere - Protects from UV radiation. |
| Which Indian emperor built the Grand Trunk Road? a) Akbar b) Sher Shah Suri c) Ashoka d) Chandragupta Maurya | b) Sher Shah Suri - Improved trade routes. |
| What is the name of the protein that forms hair and nails? a) Collagen b) Keratin c) Actin d) Myosin | b) Keratin - Provides structural strength. |
| Which phenomenon explains the bending of light as it passes through a medium? a) Reflection b) Refraction c) Diffraction d) Dispersion | b) Refraction - Causes light to change direction. |
| Which element is represented by the symbol ‘Hg’? a) Hydrogen b) Helium c) Mercury d) Magnesium | c) Mercury - A liquid metal. |
| Which African lake lies on the border of Congo and Uganda? a) Lake Victoria b) Lake Tanganyika c) Lake Albert d) Lake Malawi | c) Lake Albert - Also called Albert Nyanza. |
| In 2025, which country became the first to launch a reusable lunar lander? a) USA b) China c) Russia d) India | a) USA - NASA’s Artemis program milestone. |
| Which blood cells fight infections in the body? a) Red blood cells b) White blood cells c) Platelets d) Plasma | b) White blood cells - Part of the immune system. |
| Which acid is used in car batteries? a) Hydrochloric acid b) Sulfuric acid c) Nitric acid d) Phosphoric acid | b) Sulfuric acid - Electrolyte in batteries. |
| Which movement began with the Champaran Satyagraha in 1917? a) Non-Cooperation b) Civil Disobedience c) Quit India d) Swadeshi | d) Swadeshi - Gandhi’s first major protest. |
Hard GK Questions For Class 10 with Answers - Part 7
| Questions | Answers |
|---|---|
| Which celestial event occurs when a star undergoes a catastrophic explosion? a) Supernova b) Black hole formation c) Kilonova d) Nebula collapse | a) Supernova - Releases massive energy. |
| Which Indian state has the longest coastline? a) Tamil Nadu b) Gujarat c) Andhra Pradesh d) Maharashtra | b) Gujarat - Over 1,600 km of coastline. |
| What is the process by which plants lose water through their leaves? a) Photosynthesis b) Transpiration c) Respiration d) Guttation | b) Transpiration - Regulates water balance. |
| Which law states that current is directly proportional to voltage? a) Coulomb’s Law b) Ohm’s Law c) Faraday’s Law d) Kirchhoff’s Law | b) Ohm’s Law - Fundamental in circuits. |
| Which gas contributes to acid rain when combined with water? a) Carbon monoxide b) Sulfur dioxide c) Methane d) Ozone | b) Sulfur dioxide - Forms sulfuric acid. |
| Who was the first President of independent India? a) Jawaharlal Nehru b) Rajendra Prasad c) Sardar Patel d) C. Rajagopalachari | b) Rajendra Prasad - Served from 1950. |
| Which space agency led the first manned moon landing in 1969? a) ESA b) NASA c) ISRO d) Roscosmos | b) NASA - Apollo 11 mission. |
| Which vitamin is produced in the skin upon sunlight exposure? a) Vitamin A b) Vitamin B12 c) Vitamin C d) Vitamin D | d) Vitamin D - Essential for bones. |
| Which is the deepest ocean trench in the world? a) Tonga Trench b) Mariana Trench c) Puerto Rico Trench d) Java Trench | b) Mariana Trench - Over 11 km deep. |
| In 2024, which Indian scientist won the Nobel Prize in Chemistry? a) Venki Ramakrishnan b) None c) C.N.R. Rao d) Amartya Sen | b) None - No Indian won in 2024. |
Part 8: Hard GK Questions For Class 10 with Answers
| Questions | Answers |
|---|---|
| Which type of RNA carries genetic information from DNA to ribosomes? a) tRNA b) mRNA c) rRNA d) snRNA | b) mRNA - Messenger RNA in protein synthesis. |
| Which battle in 1757 marked the beginning of British rule in India? a) Battle of Plassey b) Battle of Buxar c) Battle of Panipat d) Battle of Wandiwash | a) Battle of Plassey - Robert Clive’s victory. |
| What is the primary source of energy in a nuclear reactor? a) Nuclear fusion b) Nuclear fission c) Chemical reaction d) Geothermal energy | b) Nuclear fission - Splits atomic nuclei. |
| Which gas is known as a greenhouse gas that traps heat? a) Nitrogen b) Oxygen c) Carbon dioxide d) Argon | c) Carbon dioxide - Contributes to warming. |
| Which desert is the largest in the world? a) Sahara b) Antarctic c) Gobi d) Kalahari | b) Antarctic - Largest cold desert. |
| Which Indian satellite studies solar phenomena? a) Chandrayaan-3 b) Aditya-L1 c) Mangalyaan d) AstroSat | b) Aditya-L1 - Launched in 2023. |
| Which tissue in the human body is responsible for movement? a) Epithelial b) Connective c) Muscular d) Nervous | c) Muscular - Enables motion. |
| Which element is used in LEDs for illumination? a) Silicon b) Gallium c) Germanium d) Carbon | b) Gallium - In gallium nitride LEDs. |
| Which country has three capital cities? a) South Africa b) Nigeria c) Bolivia d) Netherlands | a) South Africa - Pretoria, Bloemfontein, Cape Town. |
| In 2025, which city hosted the World Economic Forum? a) Davos b) Dubai c) Singapore d) New York | a) Davos - Annual meeting in Switzerland. |
Hard GK Questions For Class 10 with Answers - Part 9
| Questions | Answers |
|---|---|
| Which phenomenon causes the aurora borealis? a) Solar flares b) Cosmic rays c) Charged particles from the sun d) Meteor showers | c) Charged particles from the sun - Interact with Earth’s magnetic field. |
| Which Indian freedom fighter is known as the ‘Mother of the Indian Revolution’? a) Sarojini Naidu b) Bhikaji Cama c) Annie Besant d) Kasturba Gandhi | b) Bhikaji Cama - Designed an early national flag. |
| What is the primary function of the nephron in the kidney? a) Digestion b) Filtration c) Circulation d) Respiration | b) Filtration - Filters blood to form urine. |
| Which device converts mechanical energy into electrical energy? a) Motor b) Generator c) Transformer d) Capacitor | b) Generator - Used in power plants. |
| Which compound is known as ‘laughing gas’? a) Nitrous oxide b) Carbon monoxide c) Sulfur dioxide d) Ammonia | a) Nitrous oxide - Used in anesthesia. |
| Which mountain range separates Europe and Asia? a) Alps b) Ural Mountains c) Andes d) Rockies | b) Ural Mountains - Natural boundary. |
| In 2024, which country won the most medals at the Paris Olympics? a) USA b) China c) Japan d) France | a) USA - Topped the medal tally. |
| Which scientist discovered X-rays? a) Marie Curie b) Wilhelm Roentgen c) Ernest Rutherford d) Niels Bohr | b) Wilhelm Roentgen - In 1895. |
| Which ocean is the smallest by area? a) Atlantic b) Indian c) Arctic d) Southern | c) Arctic - Smallest ocean. |
| Which cell organelle is known as the ‘powerhouse’? a) Nucleus b) Mitochondria c) Lysosome d) Endoplasmic reticulum | b) Mitochondria - Produces ATP energy. |
Hard GK Questions For Class 10 with Answers - Part 10
| Questions | Answers |
|---|---|
| Which space probe was the first to land on a comet? a) Rosetta b) Voyager c) Cassini d) New Horizons | a) Rosetta - Landed on comet 67P in 2014. |
| Which Indian revolt took place in 1857? a) Santhal Rebellion b) Sepoy Mutiny c) Munda Rebellion d) Indigo Revolt | b) Sepoy Mutiny - First war of independence. |
| What is the chemical name for baking soda? a) Sodium chloride b) Sodium bicarbonate c) Calcium carbonate d) Potassium hydroxide | b) Sodium bicarbonate - Used in cooking. |
| Which part of the eye controls the amount of light entering? a) Cornea b) Iris c) Retina d) Lens | b) Iris - Adjusts pupil size. |
| Which force causes an object to move in a circular path? a) Gravitational force b) Centripetal force c) Frictional force d) Magnetic force | b) Centripetal force - Keeps objects in orbit. |
| Which country is the largest producer of coffee? a) Colombia b) Brazil c) Ethiopia d) Vietnam | b) Brazil - Leads global production. |
| In 2025, which Indian state launched a mission to eradicate leprosy? a) Uttar Pradesh b) Bihar c) Odisha d) Kerala | c) Odisha - Aimed for zero cases. |
| Which gas was discovered by Alexander Fleming in 1928? a) Penicillin b) Oxygen c) None d) Chlorine | c) None - Fleming discovered penicillin, not a gas. |
| Which river forms the Sundarbans Delta? a) Ganga b) Brahmaputra c) Both a and b d) Godavari | c) Both a and b - Creates mangrove forests. |
| Which scientist is known as the ‘Father of Modern Physics’? a) Isaac Newton b) Albert Einstein c) Niels Bohr d) Max Planck | b) Albert Einstein - Developed relativity. |
We hope these 100 Hard GK Questions For Class 10 with answers have challenged your intellect and deepened your understanding of the world! From science to history, this quiz is perfect for Class 10 students preparing for exams or exploring diverse topics. Keep pushing your boundaries!
Stay curious and keep learning!
