Elements, Metals & Compound Everyday Science Test Online

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Question 1

1. Which gas is essential for photosynthesis?

Answer

Carbon dioxide

Question 2

2. Which gas is called laughing gas?

Answer

Carbon dioxide

Answer

Nitrous oxide

Answer

Sulfur dioxide

Question 3

3. Which element is used in making nuclear fuel rods?

Question 4

4. Which compound is commonly known as table salt?

Answer

Na₂CO₃

Question 5

5. Which compound is commonly called gypsum?

Answer

CaSO₄·2H₂O

Answer

Na₂CO₃

Question 6

6. Which element is present in chlorophyll?

Question 7

7. Which compound is commonly called slaked lime?

Question 8

8. Which metal is used in galvanization?

Question 9

9. Which compound is commonly called washing soda?

Answer

Sodium hydroxide

Answer

Sodium carbonate

Answer

Calcium carbonate

Answer

Potassium carbonate

Question 10

10. Which element is represented by symbol K?

Question 11

11. Which element is used in light bulb filaments?

Question 12

12. Which gas is used in balloons?

Question 13

13. Which metal is most abundant in Earth’s crust?

Question 14

14. Which is the heaviest naturally occurring element?

Question 15

15. Which acid is present in milk?

Answer

Acetic acid

Answer

Lactic acid

Answer

Citric acid

Answer

Formic acid

Question 16

16. Which gas is known as marsh gas?

Answer

Carbon dioxide

Question 17

17. Which is the lightest element in the periodic table?

Question 18

18. Which is the main element in diamonds?

Question 19

19. Which acid is present in vinegar?

Answer

Lactic acid

Answer

Acetic acid

Answer

Citric acid

Answer

Oxalic acid

Question 20

20. Which element is present in hemoglobin?

Question 21

21. Which element has the symbol Fe?

Question 22

22. Which gas is known as laughing gas?

Answer

Carbon dioxide

Answer

Nitrous oxide

Answer

Sulfur dioxide

Question 23

23. Which element is used in pencils?

Answer

Carbon dioxide

Question 24

24. Which gas is known as the ozone layer protector?

Answer

Ozone (O₃)

Answer

Oxygen (O₂)

Answer

Carbon dioxide

Question 25

25. Which metal is liquid at room temperature?

Question 26

26. Which acid is known as oil of vitriol?

Answer

Nitric acid

Answer

Hydrochloric acid

Answer

Sulfuric acid

Answer

Acetic acid

Question 27

27. Which element is represented by the symbol Na?

Question 28

28. Which acid is present in lemon?

Answer

Acetic acid

Answer

Citric acid

Answer

Tartaric acid

Answer

Sulfuric acid

Question 29

29. Which is the most abundant element in Earth’s crust?

Question 30

30. Which gas is used in fire extinguishers?

Answer

Carbon dioxide

Question 31

31. Which element is used in making matchsticks?

Answer

Phosphorus

Question 32

32. Which element is called quicksilver?

Question 33

33. Which compound is used to make soft drinks fizzy?

Answer

Carbon dioxide

Question 34

34. Which element’s compounds are known as salts?

Answer

Both A & B

Question 35

35. Which gas is used for respiration by divers?

Answer

Carbon dioxide

Question 36

36. Which compound is commonly called quicklime?

Question 37

37. Which metal is used in electric wires?

Question 38

38. Which compound is known as Epsom salt?

Answer

MgSO₄·7H₂O

Answer

Na₂CO₃

Question 39

39. Which compound is used in toothpaste?

Answer

Sodium bicarbonate

Answer

Fluoride compounds

Answer

Calcium carbonate

Answer

All of these

Question 40

40. Which non-metal is essential for breathing?

Question 41

41. Which acid is known as aqua fortis?

Answer

Nitric acid

Answer

Sulfuric acid

Answer

Acetic acid

Answer

Citric acid

Question 42

42. Which metal is used in thermometers?

Question 43

43. Which is the lightest metal?

Question 44

44. Which metal is used in coins and jewelry?

Answer

All of these

Question 45

45. Which compound is used to whiten clothes?

Answer

Bleaching powder

Answer

Baking soda

Answer

Acetic acid

Question 46

46. Which compound is commonly known as baking soda?

Answer

Na₂CO₃

Question 47

47. Which gas turns lime water milky?

Answer

Carbon dioxide

Question 48

48. Which element is essential for making hemoglobin?

Question 49

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Total Questions:	50
Time Allowed:	25 Minutes
Total Marks:	50
How to Attempt Test:	Please choose the right Option in MCQ-type question.
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Elements, Metals & Compound Everyday Science Test Online

Everyday Science Elements, Metals & Compound Test

Elements, Metals & Compound Practice Mcqs Online

Study Plan for Elements, Metals & Compound Everyday Science Test Online

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Maan Ali

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Everyday Science Elements, Metals & Compound Test

Elements, Metals & Compound Practice Mcqs Online

Study Plan for Elements, Metals & Compound Everyday Science Test Online

How to Use GoTest for Preparation:

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Maan Ali

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