SAT Question of the Day

Which of the following orbitals is more stable energetically?

(A)sp
(B)sp2
(C)sp3
(D)All of them have the same energy
(E)Can not be deduced

Test number 5 - Ace the SAT II Chemistry

Questions 1-4 refer to the following characteristics

(A) Nonpolar covalent substance
(B) Noble gas
(C) Metallic substance
(D) Ionic substance
(E) Polar covalent substance

1. Lithium is a

(A) Nonpolar covalent substance
(B) Noble gas
(C) Metallic substance
(D) Ionic substance
(E) Polar covalent substance

2. F2 is a

(A) Nonpolar covalent substance
(B) Noble gas
(C) Metallic substance
(D) Ionic substance
(E) Polar covalent substance

3. If dissolved in water, it is a good electricity conductor:

(A) Nonpolar covalent substance
(B) Noble gas
(C) Metallic substance
(D) Ionic substance
(E) Polar covalent substance

4. A solution that is at equilibrium and contains the maximum amount of solute for a given amount of solvent at constant temperature and pressure is called:

(A) Saturated
(B) Suspension
(C) Supersaturated
(D) Miscible
(E) Colloid

5. The ground state electron configuration of the chromium atom (Z = 24) is characterized by which of the following?

I the presence of unpaired electrons
II fully occupied d-orbitals
III 4s orbital is fully occupied

(A) I
(B) II
(C) III
(D) I and III
(E) I, II and III.


6. H2S has a density of 1,52 g/L at STP. Which of the following gave a density at STP less than that of H2S?

(A) O2
(B) H2Se
(C) Cl2
(D) CO2
(E) All of them

7. Draw the structural formula for the BF3. How many unshared pairs of electrons are in the outer shell of the central Boron atom?

(A) 7
(B) 5
(C) 3
(D) 1
(E) 0


8. Which of the following solution, if dissolved in water, has a pH < 7?

(A) MgO
(B) NH3
(C) CO2
(D) Ba(OH)2
(E) PbO2

9. Of the following elements, which is most likely to form a negative ion with a charge of -2?

(A) F
(B) N
(C) S
(D) Mg
(E) Be

10. The hybridization associated with the central atom of a molecule in which all the bond angles are 180 o is


(A) sp
(B) sp2
(C) sp3
(D) sp3d
(E) sp3d2

Test number 4 - Ace the SAT II Chemistry

Questions 1-3 refer to the following elements:

(A) O

(B) N

(C) F

(D) Ne

(E) Na

1. Which element has the largest atomic radius?

(A) O

(B) N

(C) F

(D) Ne

(E) Na

2. Which element has the highest electronegativity?

(A) O

(B) N

(C) F

(D) Ne

(E) Na

3. Which element has the lowest ionization energy?

(A) O

(B) N

(C) F

(D) Ne

(E) Na

4. Which element can form 5 different oxides?

(A) O

(B) N

(C) F

(D) Ne

(E) Na

5. Which response includes true statements concerning the characteristics of ionic compounds?

I they have low melting points
II they are soluble in water
III their aqueous solution are very good conductors of electricity
IV Are soluble in protic solvents

(A) I and III
(B) II and III
(C) II and IV
(D) III and IV
(E) II, III, and IV

6. Which of the following is the density of oxygen at STP?

(A) 1.0 g/L
(B) 1.2 g/L
(C) 1.4 g/L
(D) 16g/L
(E) 32g/L

7. Consider the reaction (all substances are gaseous)

4NH3 + 5O2 <=> 4NO + 6H2O

What would happen if NO were added?

(A) The equilibrium will shift to the right
(B) The equilibrium will shift to the left
(C) The equilibrium will remain the same
(D) The reaction will not take place any more
(E) None of the above

8. An atom of sodium has a mass number of 23 and an atomic number of 11
How many neutrons does it have?

(A) 11
(B) 12
(C) 23
(D) 44
(E) can not be determined

9. An atom of fluorine has a mass number of 19 and an atomic number of 9
How many electrons does it have?

(A) 9
(B) 10
(C) 19
(D) 28
(E) can not be determined

10. A substance contains 55 grams of oxygen 65 grams of carbon and 30 grams of hydrogen. How many grams of oxygen will be in 200 grams substance?

(A) 27.5 g
(B) 55 g
(C) 73.33 g
(D) 110 g
(E) Not enough information.

SAT Question of the Day

Which of the following molecule has the second largest dipole moment?


(A)NH3
(B)NF3
(C)BF3
(D)NH4+
(E)HF

Test Number 3-Ace the SAT II Chemistry

1. From their electron configurations, one can predict that the geometric configuration for which of the following molecules is correct?

(A) HF bent (v shaped)
(B) H2O tetrahedral
(C) BF3 trigonal planar
(D) NF3 trigonal planar
(E) More than an answer is correct

2. Which of the following statements about carbon dioxide is true?

(A) It is less dense than air at STP
(B) If dissolved in water, the pH of the solution is > 7.
(C) It has a linear geometry
(D) At room temperature it decomposes into Carbon and Oxygen
(E) All statements are wrong.





3. How many grams of H2O are formed in the complete combustion of 5.8 grams of butane, C4H10?

(A) 0.9 g
(B) 1.8 g
(C) 18 g
(D) 9 g
(E) 4.5 g



4. Which of the following species can act as a Bronsted-Lowry acid?

(A) NH4+
(B) (CO3)2-
(C) NH3
(D) NaH
(E) Ba(OH)2

Questions 5-8 refer to the following substances:


(A) SO3
(B) HCl
(C FeCl3
(D) AgCl
(E) MgO

5. Which of the following is known to produce acid rain?

(A) SO3
(B) HCl
(C) FeCl3
(D) AgCl
(E) MgO

6. Which of the following is a salt that forms acidic aqueous solutions

(A) SO3
(B) HCl
(C) FeCl3
(D) AgCl
(E) MgO


7. Which of the following is a basic oxide?

(A) SO3
(B) HCl
(C) FeCl3
(D) AgCl
(E) MgO

8. Which of the following is insoluble in water at 25 C?

(A) SO3
(B) HCl
(C) FeCl3
(D) AgCl
(E) MgO

9. The increasing order of the ionic/atomic radius is correctly shown in:

(A) K + > Ar > Cl-
(B) Cl- > K+ > Ar
(C) K+ > Cl- > Ar
(D) Cl- > Ar > K+
(E) Ar > Cl- > K+

10. Which of the following is an alkali earth metal?

(A) Li
(B) Na
(C) Mg
(D) Al
(E) Pb

Test Number 2-Ace the SAT II Chemistry

1.What is the empirical formula of a compound that contains 0.04 mole of sodium, 0.04 mole of sulfur, and 0.06 mole of oxygen?

(A) Na2SO4
(B) Na2SO3
(C) NaSO3
(D) Na2S2O4
(E) Na2S2O3

2.How many milliliters of 0.300 M sodium hydroxide must be added to a 150 mL solution of 0.100 M hydrochloric acid to obtain a solution with a pH of 7.00?
(A) 25 ml
(B) 50 ml
(C) 75 ml
(D) 100 ml
(E) 150 ml

3.Which of the following has the highest first ionization energy?

(A) Na
(B) F
(C) Ne
(D) H2
(E) O2

4. The hybridization on the carbon in ethane, C2H6, is

(A)sp3
(B)sp2
(C)sp
(D)sp3d
(E)sp3d2

5.Which of the following gases is the most dense when all are measured under the same conditions?


(A) H2
(B) O2
(C) Cl2
(D) CO2
(E) NO2

Questions 6-9 refer to the following empirical formulas

(A) AB
(B) AB2
(C) AB3
(D) A2B
(E) A2B3

Which of the above represents the formula for the most common compound of A and B, where A and B represent given pairs of elements or polyatomic ions as indicated below?

6. A = Al and B = F

(A) AB
(B) AB2
(C) AB3
(D) A2B
(E) A2B3

7.A = Na and B = O2

(A) AB
(B) AB2
(C) AB3
(D) A2B
(E) A2B3

8. A = C and B = O
(A) AB
(B) AB2
(C) AB3
(D) A2B
(E) A2B3


9. A = NH4+ and B = (SO4)2-

(A) AB
(B) AB2
(C) AB3
(D) A2B
(E) A2B3

10. Which of the following compounds is a semimetal ?
(A) Na
(B) Be
(C) Cl
(D) As
(E) N

Question and Answer

We are here to answer any question that you may have about the chemistry SAT exam.You don't know how to solve a problem? Didn't you understand a question? You have a "though" chemistry homework? Just leave a comment and we will get back to you with an answer.
The service is temporarily disabled sorry for any inconvenience.

Test Number 1-Ace the SAT II Chemistry

Test Number 1.


Questions 1-3 refer to the following substances

(A)Cl2

(B)SO2

(C)CCl4

(D)HF

(E)NH4+


1. Which molecule is polar?

(A) HF
(B) SO2
(C) SO2 and CCl4
(D) SO2 and HF
(E) All of them.

2. Which molecule is an acid?

(A) NH4+
(B) HF
(C) HF and NH4+
(D) None of them
(E) All of them

3. Which molecule contains a double bond?

(A) Cl2
(B) SO2
(C) CCl4
(D) HF
(E) NH4+

4. Which molecule has a tetragonal geometry?

(A) NH4+
(B) CCl4
(C) Both CCl4 and NH4+
(D) SO2
(E) None of them

Questions 5-7 refer to the following substances

(A) CH4
(B) CH3COOH
(C) CH3CH2OH
(D) C2H2
(E) CH3OCH3

5. Which molecule(s) is/are a hydrocarbon(s)?

(A) CH4
(B) CH4 and C2H2
(C) CH3CH2OH
(D) C2H2
(E) CH3OCH3

6. Contains sp hybridised carbons.

(A) CH4
(B) CH3COOH
(C) CH3CH2OH
(D) C2H2
(E) CH3OCH3

7. If dissolved in water, has a pH < 7.

(A) CH4
(B) CH3COOH
(C) CH3CH2OH
(D) C2H2
(E) CH3OCH3

8. If x grams of S are needed to obtain 0.4 grams of SO3, how many grams of SO2 can be obtained from the same amount of S?

(A) 0.32 g
(B) 0.62 g
(C) 0.40 g
(D) 0.16 g
(E) Can not be calculated from the given data.

9. Which compound has the highest percent by mass of carbon?


(A) CH4
(B) CO2
(C) C6H6
(D) CH3OH
(E) C7H8

10. When the equation for the reaction represented below is balanced and all coefficients are reduced to lowest whole-number terms, the coefficient for Fe(s) is

…Fe(s) + …O2 => …Fe2O3 (s)

(A) 0
(B) 1
(C) 2
(D) 3
(E) 4