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ACS Gen Chem Practice Exam Questions and answers | Latest 2024/25 RATED A+
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ACS Gen Chem Practice ExamQuestions and answers | Latest 2024/25
RATED A+
Which is the strongest oxidizing agent? II II II II II II
N a →← N a + + e - 2 . 7 1 V
II II II II II II II II II II II II II II
Cd →← Cd2+ + 2e- 0.40 V
II II II II II II
H2 →← 2H+ +2e- 0.00V II II II II
Ag→← Ag++e- -0.80V II II
(A) Na+ II
(B)H2
(C) Cd0 II II
(D)Ag+ - Ag+ II II II II
All are examples of Lewis acid-base reactions except
II II II II II II II II
Cu2+(aq) + 4NH3(aq) →← [Cu(NH3)4]2+(aq) II II II II II
HCl(g) + NH3(g) → NH4Cl(s) II II II II
H+(aq) + OH-(aq) →← H2O(l) II II II II
2Na(s) + Cl2(g) → 2NaCl(s) - 2Na + Cl2 -> 2NaCl(s) II II II II II II II II II II II II
II According to the Lewis definition, an acid is a species - accepting a pair of electrons II II II II II II II II II II II II II II II II II
All are potential Lewis bases except
II II II II II II
NH3
H2O II
CH4 II
CN- - CH4 II II II II
Which hydrated metal ion is most acidic under conditions of equal molar concentration in
II II II II II II II II II II II II II II
water? - Al3+
II II II II II
II Which element in Group 5A forms the most basic oxide? - Bi
II II II II II II II II II II II II II
In what respect does an atom of magnesium differ from a magnesium ion (Mg^2+) - The
II II II II II II II II II II II II II II II II II II
ion has more stable electronic arrangement than the atom
II II II II II II II II II
A certain atom has the symbol 148/73Px. What does the symbol tell about an atom of the
II II II II II II II II II II II II II II II II II
element? - It has 75 neutrons in the nucleus
II II II II II II II II II II II
The atomic mass of an element is 32.07 u and its atomic number is 16. The number of
II II II II II II II II II II II II II II II II II II
protons contained in the nucleus of an atom of this element is - 16
II II II II II II II II II II II II II II II II
, The atomic mass of an element is 32.07 u and its atomic number is 16. The element forms
II II II II II II II II II II II II II II II II II II
a simple ion. The ion will most likely have a charge of - 2-
II II II II II II II II II II II II II II II II
Which atom contains 7 neutrons
II II II II II
A. n=1 n=2 n=3 II II II
M=24,z=12 2e 8e 2e II II II
B. n=1 n=2 n=3 II II II
M=15 z=7 2e 5e II II II
C. n=1 n=2 n=3 II II II
M=17, z=10 2e 8e II II II
D. n=1 n=2 n=3 II II II
M=34, z=17 2e 8e 7e - C II II II II II II II II
In which pair of compounds should the first member be more covalent than the second
II II II II II II II II II II II II II II II
member?
II
A TlCl, TlCl3
II II
B SnI4,SnF4
II
C LiF, BF3
II II
D SnF4, CF4 - SnI4, SnF4
II II II II II II II
Which is the most complete and best description of a covalent bond? - a system of nuclei
II II II II II II II II II II II II II II II II II II II
where each atom donates one electron to the other atom, thus forming a bond
II II II II II II II II II II II II II II
Which pair of elements is most likely to react to form a covalently bonded species?
II II II II II II II II II II II II II II II II
A P and O
II II II II
B Ca and O
II II II II
C K and S
II II II II
D Zn and C - P and O
II II II II II II II II II
Which chloride should exhibit the most covalent type of bond?
II II II II II II II II II II II
NaCl
KCl
CaCl2
BaCl2
BeCl2 - BeCl2 II II II II
Which two elements are most likely to involve covalent bonding?
II II II II II II II II II II II
Q 0.9 II
R 1.0 II
T 2.8II
X 3.0II
Z 4.0 - T and X
II II II II II II II
Chromium metal can be plated from an acidic solution of CrO3.
II II II II II II II II II II II
How many grams of chromium will be plated by the passage of 19,300 C - 1.73g
II II II II II II II II II II II II II II II II II
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