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CBT TEST

FUOYE CHM 101 CBT PRACTICE TEST EXAM MODE

Take your time to read instructions before taking this test.

There are 40 questions which you are to answer in 15 minutes that gives you roughly 30 seconds per question.

If you can get at least 60%, you can be rest assured that you’ll ace CHM 101 exam

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PS

In a normal exam you will be asked between 40 – 60 questions but I only arranged 40 questions

Note

  • Do not be in a hurry to answer the questions
  • Do not waste time on a question you don’t know
  • Move as fast as possible and starting with questions that don’t have calculation first to save time
  • Always crosscheck
  • Don’t be in a hurry to submit, you are not in a competition
  • Don’t be scared. Getting an A is easy
  • Don’t be over confident, you can end up a D, E or F. Calm your blood, no be only you sabi book

Please do well to use our comment box incase there’s a message you want to pass to us

70 – 100 A

60 – 69 B

50 – 59 C

45 – 49 D

40 – 44 E

0 – 39 F

I wish you success

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CHM 101

1 / 50

1. Isotopes have the same number of __________ but different numbers of ___________ in their nuclei

2 / 50

2. Molarity is defined as ______

 

3 / 50

3. Elements with ___________ atomic mass are best possible candidates for a fusion reaction

4 / 50

4.

An isotope has a half-life of 30 minutes. Given an original sample of 100 g of the isotope, how much will be left after an hour?

5 / 50

5. Which of the following is not an Arrhenius acid?

6 / 50

6. What is the oxidation number of the chromium atom in K2Cr2O7

7 / 50

7. Of the following, which element has the highest first ionization energy

8 / 50

8. Which of the following can be classified as a weak base?

9 / 50

9. An element that has the valence electronic configuration 3s2 3p3 belongs to which period and group?

10 / 50

10.

The effect of ionizing radiation depend on

11 / 50

11. A zeroth order reaction is one whose

12 / 50

12. What is the mole fraction of ethanol in a solution made by dissolving 25g of ethanol, C2H5OH, in 53.6g of Water

13 / 50

13. Which of the following supports Boyles law

14 / 50

14.

What is the expected freezing point of a 0.50m solution of Na2CO3 in water? Kf for water is 1.86°C/m

15 / 50

15. Who is the Dean of Faculty of Science in Fuoye

16 / 50

16. Which cell involves a non-spontaneous redox reaction?

17 / 50

17. Chlorine belongs to the ____________ group on the periodic table

18 / 50

18. Radiation is detected by its ___________ properties

19 / 50

19.

What is the minimum energy barrier that must be overcome for a chemical reaction to occur

20 / 50

20. The binding energy is defined as

 

21 / 50

21. The energy of motion is

22 / 50

22. Calculate the percentage composition of Nitrogen in Magnesium Nitrate Mg(No3)2

Mg =24.31

N= 14.01

O= 16

23 / 50

23. What is the overall reaction order for the reaction that has the rate law: k[H2] [NO] 2

24 / 50

24. Using the method of initial rates for the reaction A➡B, if the initial concentration of A is doubled and the rate of reaction quadruples, what is the order of reaction with respect to A?

25 / 50

25. What symbol is used to express the facor,10^-6?

26 / 50

26.

During an electrochemical reaction, electrons move through the external circuit toward the __________ and positive ion in the cell move toward the ____________.

27 / 50

27. The factor 0.001 corresponds to which prefix

28 / 50

28. Gamma radiation can be described as

29 / 50

29. How many grams of chromium metal are plated out when a constant current of 8.00A is passed through an aqueous solution containing Cr3+ ions for 40 minutes

30 / 50

30. The Element that best describes Alpha decay is?

31 / 50

31. The number of nucleons in an atom or ion is the same as the

32 / 50

32. A saturated solution is defined as

33 / 50

33. Which of the following compounds would be soluble in water?

34 / 50

34.

A catalyst increases the rate of reaction by providing a different reaction pathway that

35 / 50

35. Elements in a periodic group have similar

36 / 50

36. Ozone is unstable, decomposing to oxygen, as shown in the balanced equation 2O2 ➡ 3O2. In this reaction, how many grams of oxygen can be formed from the decomposition of 96g of ozone?

37 / 50

37.

Which of the following can be interpreted as a measure of randomness

38 / 50

38. What mass of HNO3(63g/mol) is contained in 300ml of 0.30 M HNO3 solution!

39 / 50

39. What is the oxidation number of the chromium atom in K2Cr2O4?

40 / 50

40. How many grams of KNO3 are needed to make 250ML of a solution that is 0.135M

 

41 / 50

41. Which group reacts violently with water?

42 / 50

42. Which of the following is not used to describe the condition of a gas?

43 / 50

43. What is the minimum energy barrier that must be overcomed for a chemical reaction to occur

44 / 50

44. What is the Mass number of Na?

45 / 50

45. Water is an example of

46 / 50

46. How many grams of nickel metal are plated out when a constant current of 15.0A is passed through aqueous NiCl2 for 80.0 minutes

47 / 50

47. What is the electronic configuration of Potassium (K)?

48 / 50

48. According to history, the concept that all matter is composed of atom was first proposed by

49 / 50

49. Which cell involves a non-spontaneous redox reaction?

50 / 50

50. What is the identity of the element with 6 protons, 7 Neutrons and 6 electrons

Your score is

The average score is 47%

0%

Phil

Phil aka Undergragra is a Computer Engineering Graduate at the Federal University Oye-Ekiti. He is a lover of God, a passionate teacher, writer and an educational consultant.

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Ernest
Ernest
21 days ago

Please I don’t know if it is the website or my phone. It’s hard to change my answers. When I tried doing so, it might end up picking another answer or just not pick any. Meanwhile an indicator shows that one answer has been picked. In the end the website shows that I didn’t answer the question in the end.

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