1. Which of the following statement is incorrect?

I.Dry ice is an example of molecular solid.

II.Sodium chloride or table salt is an example of Ionic Solids under Amorphous Solids.

III. Saturated solution contains the minimum amount of solute that can be dissolved in a particular solvent at a particular temperature.

IV. Network solids basically form a rigid crystal structure.

• A. I AND II

• B. I AND III

• C. II AND III

• D. II AND IV

• E. ALL OF THE ABOVE

2. Professor Jihyo asked Sana to measure the dimension of rectangular table. After measuring it, she got the dimensions with the following measurement:

Length = 39.31 cm, Width = 26.70 cm, Height  = 10.70 cm and Mass = 789590.23g

What is the density of the table? Final answer should be in correct number of significant figure.

• A. 70.31 g/cm³

• B. 73.41 g/cm³

• C. 0.7031 g/cm³

• D. 7.341 g/cm³

• E. NO ANSWER

3. List down all possible set of angular momentum number (l) and magnetic quantum number (ml) when n = 2

• A. n=2, l=1&2, ml=-2,-1,0,1,2

• B. n=2, l=0,1,2

  ml= 0; -1,0,1

• C. n=2, l=0 ; 1

  ml= 0 ; -1,0,1

• D. n=2, l=1,2,3

  ml=0,1,2,3

• E. NO ANSWER

4. What are the two main classes of solids?

• A. Amorphous and Quantum Solids

• B. Amorphous and Crystalline Solids

• C. Crystalline and Quantum Solids

• D. Significant and Crystalline Solids

• E. NO ANSWER

5. Which of the following statement is correct?

I. Colligative Properties depend only on the concentration of solute and not on the chemical identity of the solute particles.

II. While dealing with colligative properties, we’ll often use molality instead of molarity.

III. While dealing with colligative properties, we’ll often use molarity instead of molality.

IV. The more solutes added into a solvent, the lower the vapor pressure is.

 

• A. I AND II

• B. I, II, AND III

• C. I, II, AND IV

• D. ALL OF THE ABOVE

• E. NONE OF THE ABOVE

6. Which of the following statement is incorrect?

 

I. The final width of Miss Chaeyoung’s book is 10.005 and has a sf of 2.

II. 2.0 has two significant figures.

III. 7 is the uncertain digit in the value 786.

IV. Density is equals to mass over volume.

• A. I AND II

• B. I AND III

• C. I AND IV

• D. BOTH A AND B

• E. NONE OF THE ABOVE

7. What is the angular momentum number (ml) of the 4d subshell?

• A. -1,0,1

• B. 2,1,0,-1,-2

• C. -2,-1,0,1,2

• D. 1,0,-1

• E. NONE OF THE ABOVE

8. Convert 400 mL to dm³.

• A. 0.4 dm³

• B. 0.0004 dm³

• C. 40.0 dm³

• D. 0.440 dm³

• E. NONE OF THE ABOVE

9. As we go up to the mountain, the boiling point of a water will _____.

• A. increase

• B. increase then decrease after

• C. decrease

• d. stays the same

• E. NO ANSWER

10. Which of the following set of quantum number is wrong?

• A. n=1, l=0, ml=0 -> 1s

• B. n=2, l=2, ml= -2,-1,0,1,2 -> 2s

• C. n=2, l=1, ml=-1,0,1 -> 2p

• D. n=3, l=2, ml=-2,-1,0,1,2 -> 3d

• E. NO ANSWER