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Q.1:
(A) 0.1 M HCl
(B) 0.1 M NaCl
(C) 0.1 M HC2 H3 O2
(D) 0.1 M CH3 OH
(E) 0.1 M KOH
is weakly acidic

Q.2:
(A) 0.1 M HCl
(B) 0.1 M NaCl
(C) 0.1 M HC2 H3 O2
(D) 0.1 M CH3 OH
(E) 0.1 M KOH
has the highest pH

Q.3:
(A) 0.1 M HCl
(B) 0.1 M NaCl
(C) 0.1 M HC2 H3 O2
(D) 0.1 M CH3 OH
(E) 0.1 M KOH
reacts with an equal volume of 0.05 M Ba(OH)2 to form a solution with pH = 7

Q.4:
(A) X+
(B) X2+
(C) X3+
(D) XO3 2-
(E) XO4 2-
is a type of ion found in sodium acetate.

Q.5:
(A) X+
(B) X2+
(C) X3+
(D) XO3 2-
(E) XO4 2-
is a type of ion found in aluminum oxide.

Q.6:
(A) X+
(B) X2+
(C) X3+
(D) XO3 2-
(E) XO4 2-
is a type of ion found in potassium phosphate

Q.7: Question refers to the following atoms in the ground state.
(A) Ar
(B) O
(C) S
(D) Ti
(E) U
has the electron configuration 1s2 2s2 2p6 3s2 3p4 .

Q.8: Question refers to the following atoms in the ground state.
(A) Ar
(B) O
(C) S
(D) Ti
(E) U
has the same number of electrons as Ca2+ .

Q.9: Question refers to the following atoms in the ground state.
(A) Ar
(B) O
(C) S
(D) Ti
(E) U
has electrons in f orbitals.

Q.10: Question refers to the following atoms in the ground state.
(A) Ar
(B) O
(C) S
(D) Ti
(E) U
is the LEAST chemically reactive.

Q.11: The hydrogen ion concentration of a solution prepared by diluting 50. mL of 0.10 M HNO3(aq) with water to 500 mL of solution is
(A) 0.0010 M
(B) 0.0050 M
(C) 0.010 M
(D) 0.050 M
(E) 1.0 M

Q.12: . . .Cu2+ (aq) + . . . I- (aq) = ...CuI(s) + . . . I2 (s)
When the equation above is balanced and all coefficients are reduced to lowest whole number terms, the coefficient for I- (aq) is
(A) 1
(B) 2
(C) 3
(D) 4
(E) 5

Q.13: For elements in the left-most column of the periodic table, properties that have increasing values as the atomic number increases include which of the following?
I.Ionization energy(potential)
II.Atomic radius
III.Atomic mass
(A) I only
(B) III only
(C) I and II only
(D) II and III only
(E) I, II, and III

Q.14: All of the following can act as Brønsted-Lowry acids (proton donors) in aqueous solution(EXCEPT)
(A) HI
(B) NH4 +
(C) HCO3 -
(D) H2 S
(E) NH3

Q.15: What is the minimum number of moles of PbSO4 that must be used to prepare 1 liter of saturated PbSO4 solution at 25 0 C? (Ksp at 25 0 C for PbSO4 =1×10-8 )
(A) 1×10-16 mol
(B) 1×10-8 mol
(C) 1×10-4 mol
(D) 1×10-2 mol
(E) 1×10-1 mol

Q.16: . . . SO2 (g) + . . . O2 (g) = . . . SO3 (g)
16. According to the reaction represented by the unbalanced equation above, how many moles of SO2 (g) are required to react completely with 1 mole of O2 (g) ?
(A) 0.5 mol
(B) 1 mol
(C) 2 mol
(D) 3 mol
(E) 4 mol

Q.17: Analysis by mass of a certain compound shows that it contains 14 percent hydrogen and 86 percent carbon. Which of the following is the most informative statement that can properly be made about the compound on the basis of these data?
(A) It is a hydrocarbon.
(B) Its empirical formula is CH2 .
(C) Its molecular formula is C2 H4 .
(D) Its molar mass is 28 g/mol.
(E) It contains a triple bond.

Q.18: C3 H8 (g) + 5 O2 (g) = 3 CO2 (g) + 4 H2 O(l)
18. The combustion of propane, C3 H8 (g), proceeds according to the equation above.How many grams of water will be formed in the complete combustion of 44.0 grams of propane?
(A) 4.50 g
(B) 18.0 g
(C) 44.0 g
(D) 72.0 g
(E) 176 g

Q.19: The number of oxygen atoms in 0.50 mole of KHSO4 is
(A) 1.2 ×1023
(B) 2.4 ×1023
(C) 3.0 ×1023
(D) 1.2 ×1024
(E) 2.4 ×1024

Q.20: All of the following statements about carbon dioxide are true EXCEPT:
(A) It can be prepared by the action of acid on limestone.
(B) It is used to extinguish fires.
(C) It dissolves in water at room temperature.
(D) It sublimes rather than melts at 20°C and 1 atmosphere pressure.
(E) It is less dense than air at a given temperature and pressure.

Q.21: From their electron configurations, one can predict that the geometric configuration for which of the following molecules is NOT correct?
(A) PF3 trigonal planar
(B) CF4 tetrahedral
(C) CHCl3 irregular tetrahedron
(D) OF2 bent (v-shaped)
(E) HF linear

Q.22:
I. The rate at which sugar dissolves in water(increases) with stirring
II. BECAUSE stirring exposes the surface of a solute crystal to a less concentrated layer of solution.
State whether I and II are true or false.

Q.23:
I. Diamond has a high melting point
II BECAUSE in a diamond crystal, the carbon atoms are held in place by ionic bonds.
State whether I and II are true or false.

Q.24:
I. Potassium has a lower first ionization energy than lithium has
II. BECAUSE potassium has more protons in its nucleus than lithium has.
State whether I and II are true or false.

Q.25:
I. Zinc metal will reduce Cu2+ in solution
II BECAUSE zinc is a more active metal than copper is.
State whether I and II are true or false.

Q.26:
HC2 H3 O2 + H2 O = C2 H3 O2 - + H3 O+
I.If some acetic acid, HC2 H3 O2 , is added to the equilibrium mixture represented by the equation above, the concentration of H3 O+ decreases
II. BECAUSE the equilibrium constant of a reaction changes as the concentration of the reactants changes.
State whether I and II are true or false.






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