Science questions asked in previous year
1. Which
planet is considered as the Dwarf planet?
Answer-
Pluto
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2. Sandstone is which type of rock?
Answer-
Sedimentary Rock
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3. What is
the SI unit of Force?
Answer-
Newton
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4.
Hemoglobin is an important component _______cell.
Answer-
red blood cells
5. Anaemia
is caused because of deficiency of?
Answer-
Iron
6. What is
the minimum distance (in metres) required to hear an echo?
1) 10 2) 13 3) 17 4) 21
Answer-
17 m
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7. Why does
a black board appears black in colour?
Answer-
It absorbs all the colours
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8. Which metal is used for galvanization?
Answer-
Zinc
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9. What is
dry ice?
Answer-
Solid Carbon dioxide
10. Who
discovered X-rays?
Answer-
W. C. Roentgen
11. Land
covers about ______ of the earth's surface
Answer-
30%
12. The
uppermost layer over the earth's surface is called the ______
Answer-
Crust
13. The
scientific name of human being is?
Answer-
Homo Sapiens
14. Meter in
a vehicle that calculates distance covered by the vehicle is called __________
Answer-
Odometer
15. What is
the SI unit of pressure?
Answer-
Pascal
16. Which
state of matter is highly compressible?
Answer-
Gas
17. -
___________ gases absorb long wave (infrared) radiation from the earth and emit
it again towards the earth.
Answer-
Greenhouse
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18. Which is
the longest bone in human body?
Answer-
Femur
19. In
unicellular organisms, all functions like digestion, respiration and
reproduction are performed by a how many cell(s)?
Answer-
1
20. Xylem
helps in transportation of which of the following?
Answer-
Water
21. What is
the other name of Galileo's law of falling bodies?
Answer-
Newton's first law
22. Which
acid is released when an Ant bites?
Answer-
Formic Acid
23.
Gravitational force is maximum at which part of earth?
Answer:- At poles
24. Which of
the following device is used to measure humidity?
Answer- Hygrometer
25. At what
temperature (in Fahrenheit) pure water freezes?
Answer-
32
26. Which
metal is generally used for making filaments of bulb?
Answer-
tungsten
27. Marble
comes under which category of rocks?
Answer-
Metamorphic
28. Which
organ has finger like outgrowths which are called as Villi (Singular Villus)?
29. What are
isobars?
Answer:-
Elements with different atomic number
but same mass number
30. Which
component of blood carries oxygen to various parts of human body?
Answer:
Red blood cells
31. Which of
the following function is performed by the kidneys in the human body?
Answer-
Excretion
32. In the
following reaction, fill in the blank. Acid + Base → _______ + Water
Answer-
Salt
33. Who
discovered bacteria?
Answer-
Antonie Ven Leeuwenhoek
For more question about microorganism please CLICK HERE
34. What is
the name of a group of similar cells performing a specific function?
Answer-
Tissue
35. It is
difficult to fix a nail on a freely suspended wooden frame. Which law supports
this statement?
Answer-
Newton's third law
35. pH of
the human blood is ______.
Answer-
Slightly Basic
36. Which of
the following is the most abundant metal on Earth's crust?
Answer-
Aluminium
37. Which
type of micro-organism causes diseases like polio and chicken pox?
Answer-
Virus
38. What is
the SI unit of frequency?
Answer-
Hertz
39. Red data
book contains?
Answer-
All endangered species
40. Nephron
is related to which of the following system of human body?
Answer: Excretory system
41. Which
Vitamin is obtained from Sun rays?
Answer:
Vitamin D
42. What is
the SI unit of electric current?
Answer-
Ampere
43. Which
blood group is universal acceptor?
Answer:
AB+
44. If
objects appear enlarged and inverted in a rear view mirror, then which type of
mirror is used?
Answer:
Concave
45. Which of
the following is a characteristic of an exothermic reaction?
Answer:
Release of heat
46. What is
the chemical formula for Sodium Chloride (Salt)?
Answer-
NaCl
47. What is
SI unit of wavelength?
Answer-
meter
48. What is
the SI unit of energy?
Answer-
Joule
49. who discover the cell and when?
Answer- Robert hook 1665
49. who discover the cell and when?
Answer- Robert hook 1665
50. Morning
star as well as evening star is the name given to?
Answer
- planet Venus
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