Table 22 $\mathrm { NaOH } \rightleftharpoons \mathrm { Na } ^ { + } + \mathrm { OH } ^ { - }$

question 64

Multiple Choice

Table 2.2 $\mathrm { NaOH } \rightleftharpoons \mathrm { Na } ^ { + } + \mathrm { OH } ^ { - }$ is a base
$\mathrm { HF } \rightleftharpoons \mathrm { H } ^ { + } + \mathrm { F } ^ { - }$ is an acid

$\mathrm { MgSO } _ { 4 } \rightleftharpoons \mathrm { Mg } ^ { 2 + } + \mathrm { SO } _ { 4 } ^ { 2 - }$ is a salt

$\mathrm { KH } _ { 2 } \mathrm { PO } _ { 4 } \rightleftharpoons \mathrm { K } ^ { + } + \mathrm { H } _ { 2 } \mathrm { PO } _ { 4 } ^ { - }$ is an acid

$\mathrm { H } _ { 2 } \mathrm { SO } _ { 4 } \rightleftharpoons 2 \mathrm { H } ^ { + } + \mathrm { SO } _ { 4 } ^ { 2 - }$ is an acid
-Which of the following statements about the reactions in Table 2.2 is FALSE?

• A)They are exchange reactions.
• B)They are ionization reactions.
• C)They occur when the reactants are dissolved in water.
• D)They are dissociation reactions.
• E)They are reversible reactions.

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