Chemistry In Everyday Life Online Test 6th Science Lesson 15 Questions in English

1. Which of this process change the substance?

2. Which of these is called as a Natural Indicator?

3. Identify the correct statements below
i. In Physical change only the size and shape of the matter changes.
ii. Egg boiling process is an example of physical change of a matter.

4. Chemistry is the branch of science which deals with the study of _____ around us.

5. Which chemical is present in onion that causes irritation in our eyes?

6. Which of the following cause the fermentation of batter?

7. What is the other name of soap making Sodium hydroxide?

8. Assertion (A): Depending on the nature of the alkali used in production soaps have distinct properties.
Reasoning (R): Potassium Hydroxide (KOH) is used for washing.

9. Which of these are called as Principal Nutrients?

10. How many types of Fertilizers are classified?

11. Identify the incorrect statements given below.
i. Inorganic fertilizers are synthesized by micro-organisms.
ii. Organic fertilizers are Urea, Ammonium Sulphate.
iii. Organic fertilizers are very economical.

12. Earth worms take organic wastes as food and produce ______.

13. Which plays the key role in controlling the rate of hardening the cement?

14. Match
1. Mortar A. Iron mesh
2. Concrete B. Binding Blocks
3. Reinforced Cement C. Bridges

15. In which year Joseph Aspdin invented cement?

16. Concrete is a mixture of

17. Identify the correct statements below.
i. Gypsum is hard, white mineral
ii. It is naturally unavailable.

18. What is the chemical name of Gypsum?

19. Usage of Epsom salts are,
i. Medicine for skin problems
ii. Making of Plaster of Paris
iii. Construction industry
iv. Stress reliever

20. Which is used in making casts for statues and toys?

21. Which Oil material is used for the cleaning purpose?

22. Identify the correct statements given below regarding Phenol.
i. It is a strong Acid.
ii. It is Volatile.
iii. Grey Crystalline Material.
iv. Coloured solution

23. To which color Phenol solution changes if dust is present?

24. Assertion (A): Phenol kills Microorganisms.
Reasoning (R): It is used as Surgical Antiseptic.

25. Adhesives are also known as,

25. Adhesives are also known as,

26. From which of the following the natural adhesive is made?

26. From which of the following the natural adhesive is made?

27. Artificial Adhesive is classified based on their ______.

28. Which is used as a disinfectant and cleaner?

31. Which increases the adhesive capacity at the surfaces for proper binding?

32. Choose the correct statements.
i. Sunlight, water and air are essential for the growth of the plant.
ii. Fertilizers are also essential for the growth of plants.

33. Which of the following is used to produce a Basic Soap?

34. According to which the nature of soaps is varied?

35. Which of these are inorganic fertilizers?

36. Cement is manufactured by crushing natural materials like ____ , clay and Gypsum.

37. What is added to control the setting of the cement?

38. Match
i. Gypsum A. MgSo4.7H2O
ii. Epsom B. C6H5OH
iii. Plaster of Paris C. CaSO4.2H2O
iv. Phenol D. CaSO4.1/2 H2O

39. What type of compound is the Phenol?

40. By which of this process cement is manufactured?

41. Which of these is indicated as the natural indicator by the chemists?

42. How many types of fertilizers are classified?

43. What are the uses of the cement?

44. Which is defined as the farmer’s friend?

45. Which of these are built by using reinforced cement concrete?