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ACS GEN CHEM 1 FINAL EXAM 2024
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ACS GEN CHEM 1 FINAL EXAM 2024
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ACS GEN CHEM 1 FINAL EXAM 2024Which is the strongest oxidizing agent?
N a →← N a + + e - 2 . 7 1 V
Cd →← Cd2+ + 2e- 0.40 V
H2 →← 2H+ +2e- 0.00V
Ag→← Ag++e- -0.80V
(A) Na+
(B)H2
(C) Cd0
(D)Ag+ - Precise Answer ✔✔Ag+
All are examples of Lewis acid-base reactions except
Cu2+(aq) + 4NH3(aq) →← [Cu(NH3)4]2+(aq)
HCl(g) + NH3(g) → NH4Cl(s)
H+(aq) + OH-(aq) →← H2O(l)
2Na(s) + Cl2(g) → 2NaCl(s) - Precise Answer ✔✔2Na + Cl2 -> 2NaCl(s)
According to the Lewis definition, an acid is a species - Precise Answer ✔✔accepting a pair of electrons
All are potential Lewis bases except
NH3
H2O
CH4
CN- - Precise Answer ✔✔CH4
Which hydrated metal ion is most acidic under conditions of equal molar concentration in water? -
Precise Answer ✔✔Al3+
, Which element in Group 5A forms the most basic oxide? - Precise Answer ✔✔Bi
In what respect does an atom of magnesium differ from a magnesium ion (Mg^2+) - Precise Answer
✔✔The ion has more stable electronic arrangement than the atom
A certain atom has the symbol 148/73Px. What does the symbol tell about an atom of the element? -
Precise Answer ✔✔It has 75 neutrons in the nucleus
The atomic mass of an element is 32.07 u and its atomic number is 16. The number of protons contained
in the nucleus of an atom of this element is - Precise Answer ✔✔16
The atomic mass of an element is 32.07 u and its atomic number is 16. The element forms a simple ion.
The ion will most likely have a charge of - Precise Answer ✔✔2-
Which atom contains 7 neutrons
A. n=1 n=2 n=3
M=24,z=12 2e 8e 2e
B. n=1 n=2 n=3
M=15 z=7 2e 5e
C. n=1 n=2 n=3
M=17, z=10 2e 8e
D. n=1 n=2 n=3
M=34, z=17 2e 8e 7e - Precise Answer ✔✔C
In which pair of compounds should the first member be more covalent than the second member?
A TlCl, TlCl3
B SnI4,SnF4
C LiF, BF3
D SnF4, CF4 - Precise Answer ✔✔SnI4, SnF4
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