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Practice - 50

Welcome to your SBC-50

1. 
Which of these is a heterogeneous mixture?

2. 
0.00056 in scientific notation is:

3. 
Dalton said atoms cannot be ___.

4. 
Mixtures are formed by:

5. 
Elements are classified into:

6. 
Which statement changed Dalton’s theory?

7. 
According to Dalton, atoms are:

8. 
Milk is an example of:

9. 
Which of the following has variable composition?

10. 
Which scientific form is correct?

11. 
In a solution, saltwater is an example of:

12. 
Compounds are formed by:

13. 
Which is a physical property?

14. 
Which subatomic particle was discovered first?

15. 
Elements are made up of:

16. 
In 3.4×10², the value is:

17. 
Atoms of same element may differ in:

18. 
Which of these is not a state of matter mentioned in text?

19. 
Which cannot be broken down?

20. 
Which term describes equal distribution in mixture?

21. 
5,600,000 in exponential notation is:

22. 
Which is an example of a compound?

23. 
Chemical property includes:

24. 
Water (H₂O) can be separated by:

25. 
Matter is anything that has ___ and occupies space.

26. 
A mixture can be separated by:

27. 
Which mixture is uniform throughout?

28. 
Example of metalloid:

29. 
Modern view says atoms are:

30. 
The smallest identity of a compound is:

31. 
Which is a correct pair?

32. 
Pure substances have:

33. 
A homogeneous mixture has:

34. 
Dalton stated that atoms of different elements differ in:

35. 
Which of the following is matter?

36. 
In scientific notation, exponent shows:

37. 
The symbol representation of elements is called:

38. 
In heterogeneous mixture, constituents are:

39. 
Dalton stated that atoms combine in:

40. 
Atoms combine chemically to form:

41. 
Air is an example of:

42. 
Which does not show Tyndall effect?

43. 
N×10ⁿ indicates N is:

44. 
Which method separates solids from liquids?

45. 
Which is true about solutions?