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Practice Set 12

December 1, 2025
Questionnaire

1. Charles Darwin proposed the theory of evolution through:

A. Hybridization

B. Natural Selection

C. Mutations

D. Law of Segregation

2. Who formulated the three laws of motion?

A. Charles Darwin

B. Isaac Newton

C. Gregor Mendel

D. Albert Einstein

3. Gobar gas (biogas) is mainly composed of:

A. Carbon monoxide

B. Methane

C. Ethane

D. Hydrogen

4. Ethane (C₂H₆) belongs to which class of hydrocarbons?

A. Alkynes

B. Aromatics

C. Alkanes

D. Alkenes

5. Penicillin was discovered by:

A. Louis Pasteur

B. Alexander Fleming

C. Robert Koch

D. Edward Jenner

6. The writing core of a pencil is made of:

A. Lead metal

B. Graphite

C. Carbon black

D. Zinc

7. Which metal is popularly known as the ‘reddish-brown metal’?

A. Iron

B. Copper

C. Aluminium

D. Nickel

8. Hydrogen gas is most commonly prepared in labs by the reaction of zinc with:

A. Sulphuric acid

B. Nitric acid

C. Acetic acid

D. Carbonic acid

9. The Rigvedic term ‘Nishka’ primarily referred to:

A. Gold ornament

B. Copper tool

C. Weighing unit

D. Land unit

10. The Indus Valley people mainly worshipped:

A. Vishnu

B. Pashupati 

C. Buddha

D. Surya

11. Ashoka’s inscriptions were written mostly in:

A. Sanskrit

B. Pali/Prakrit

C. Tamil

D. Perso-Arabic

12. The earliest evidence of agriculture in India is found at:

A. Lothal

B. Mehrgarh

C. Kalibangan

D. Dholavira

13. Which vitamin is most abundant in cow’s milk?

A. Vitamin A

B. Vitamin B2 

C. Vitamin C

D. Vitamin K

14. The term “Grand Slam” is associated with:

A. Football

B. Cricket

C. Tennis

D. Hockey

15. The Olympic Games are held every:

A. 2 years

B. 3 years

C. 4 years

D. 5 years

16. "Yellow Card” is used in which sport?

A. Badminton

B. Football

C. Kho-Kho

D. Kabaddi

17. Lionel Messi is associated with which sport?

A. Tennis

B. Football

C. Basketball

D. Rugby

18. Major Dhyan Chand is associated with:

A. Cricket

B. Football

C. Hockey

D. Athletics

19. "La Tomatina,” a tomato-throwing festival, is held in:

A. Argentina

B. Spain

C. Portugal

D. France

20. The world-famous art museum “Louvre” is located in:

A. Paris

B. London

C. Rome

D. Madrid

21. Machu Picchu, one of the New 7 Wonders of the World, is located in:

A. Brazil

B. Mexico

C. Peru

D. Chile

22. Varanasi is situated on the bank of which river?

A. Yamuna

B. Ganga

C. Gomti

D. Son

23. The smallest bone in the human body is:

A. Ulna

B. Stapes

C. Femur

D. Radius

24. The headquarters of UNESCO is in:

A. New York

B. Paris

C. Rome

D. Geneva

25. “The Discovery of India” was written by:

A. Rabindranath Tagore

B. Jawaharlal Nehru

C. R. K. Narayan

D. Amartya Sen

26. The motto of the Indian Navy is:

A. Satyameva Jayate

B. Shauryam Daksham Yuddham

C. Shano Varuna

D. Service Before Self

27. The Civil Disobedience Movement began in:

A. 1920

B. 1930

C. 1935

D. 1942

28. The India Gate monument was built in memory of:

A. Soldiers of World War I

B. Revolt of 1857

C. Kargil War

D. Jallianwala Bagh

29. Mount Vesuvius is located in:

A. Greece

B. Japan

C. Italy

D. Indonesia

30. The pitch of sound depends on:

A. Amplitude

B. Frequency

C. Velocity

D. Wavelength

31. The largest planet in the Solar System is:

A. Earth

B. Saturn

C. Jupiter

D. Neptune

32. The scientific name of wheat is:

A. Oryza sativa

B. Triticum aestivum

C. Zea mays

D. Cicer arietinum

33. Leucoplasts are primarily involved in:

A. Photosynthesis

B. Storage of food

C. Colour production

D. Cell movement

34. Which pigment is abundant in chloroplasts?

A. Xanthophyll

B. Chlorophyll

C. Anthocyanin

D. Carotene

35. Chloroplasts are mainly responsible for:

A. Respiration

B. Photosynthesis

C. Protein synthesis

D. Cell division

36. Cell division in somatic (body) cells occurs through:

A. Meiosis

B. Binary fission

C. Mitosis

D. Fragmentation

37. The Jallianwala Bagh memorial is located in:

A. Amritsar

B. Delhi

C. Meerut

D. Lucknow

38. Mahatma Gandhi died in the year:

A. 1947

B. 1948

C. 1950

D. 1952

39. Gujarat state was formed on:

A. 1 May 1956

B. 1 May 1960

C. 15 August 1950

D. 26 January 1956

40. The national animal of India (tiger) belongs to species:

A. Panthera tigris tigris

B. Panthera leo persica

C. Felis domestica

D. Panthera pardus

41. The river on which the Tehri Dam is built:

A. Ganga

B. Yamuna

C. Bhagirathi

D. Alaknanda

42. Which river forms the boundary between India and Pakistan in the Rann region?

A. Indus

B. Luni

C. Sir Creek

D. Ravi

43. The monsoon winds blow from:

A. Land to sea

B. Sea to land

C. Poles to equator

D. East to west uniformly

44. Retreating monsoon occurs mainly during:

A. June–July

B. August–September

C. OctoberNovember

D. December–January

45. The BrahMos missile is named after:

A. Brahmaputra & Moskva Rivers

B. Brahmaputra & Missouri Rivers

C. Brahmani & Moscow Rivers

D. Brahmaputra & Moscow Mountain

46. Mitochondria divide by:

A. Binary fission

B. Budding

C. Mitosis

D. Fragmentation

47. The island group known for coral formation:

A. Andaman

B. Nicobar

C. Lakshadweep

D. Sri Lanka

48. World’s highest rainfall occurs at:

A. Munnar

B. Cherrapunji

C. Mawsynram

D. Kohima

49. The first railway in eastern India ran from:

A. Howrah to Raniganj

B. Sealdah to Hooghly

C. Howrah to Dhanbad

D. Sealdah to Burdwan

50. The Rajbari Palace is associated with which dynasty?

A. Cooch Behar

B. Murshidabad Nawabs

C. Singur Rajas

D. Jhargram Zamindars