1. Which of the following is the most reactive metal?
(a) Silver
(b) Aluminium
(c) Iron
(d) Potassium
2. Which of the following is NOT a rabi crop?
(a) Barley
(b) Mustard
(c) Rapeseed
(d) Cotton
3. Which device is called silico sapiens?
(a) Computer
(b) Robot
(c) Moniter
(d) Hardware
4. The soil of the sunderban of West Bengal is-
(a) Red Soil
(b) Clayey Saline Soil
(c) Alluvial Soil
(d) Black Soil
5. Rock Salt contains which mineral?
(a) Gypsum
(b) Sodium
(c) Potassium
(d) Magnesium
6. Offloading of government shares to private companies is known as _____.
(a) Investment
(b) Disinvestment
(c) Centralization
(d) Decentralization
7. Which of the following is the largest plateau in India?
(a) Vindhya Plateau
(b) Deccan Plateau
(c) Chhota Nagpur Plateau
(d) Malwa Plateau
8. The longest river of Western West Bengal is:
(a) Rupnarayan
(b) Damodar
(c) Subarnarekha
(d) Koyna
9. Refrigeration helps in food preservation by
(a) Killing of germs (bacteria)
(b) Reducing the rate of a biochemical reaction
(c) Destroying the enzyme action
(d) Sealing food with a layer of ice
10. Brain receives and sends signals in the form of ________.
(a) Chemical impulses
(b) Magnetic impulses
(c) Mechanical impulses
(d) Electrical impulses
11. The element which liberates oxygen gas from water is :
(a) P
(b) Na
(c) F
(d) I
12. Which gas burns in carbide gas lamp?
(a) Methane
(b) Ethane
(c) Ethylene
(d) Acetylene
13. The author of the book ‘Zest for Life’is :
(a) Emile Zola
(b) H.G. Walls
(c) Virginia Wolf
(d) Mark Twain
14. In which country ‘death valley’ is located?
(a) Brazil
(b) Australia
(c) Pakistan
(d) United States of America
15. Zloty is the currency of which country?
(a) Poland
(b) Mozambique
(c) New Zealand
(d) Zaire
16. Where is the Rail Museum situated In West Bengal?
(a) Purulia
(b) Malda
(c) Howrah
(d) Jhargram
17. Which glass is used to make spectacles?
(a) Soda glass
(b) Potash glass
(c) Crookes glass
(d) Jena glass
18. The biggest island in Indian Ocean is :
(a) Madagascar
(b) Maldives
(c) Sumatra
(d) Lakshadweep
19. Which is the largest pyramid of Egypt?
(a) Pyramid of Khafre
(b) Pyramid of Menkaur
(c) Pyramid of Khufu
(d) Pyramid of Djedefre
20. In which country is Golden Rock Pagoda situated?
(a) Sri Lanka
(b) Myanmar
(c) Nepal
(d) China