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In some foam-type fre extinguishers, the...

In some foam-type fre extinguishers, the treactants are `Al_2 (SO_4)_3` (aq) and `NaHCO_3` (aq). T=When the extinguisher is activated, these reactants are allowed to mix producing `Al(OH)_(3(s))` and ` CO_(2(g))`. The ` al (OH)_3 - CO_2` foram extinguishes the fires .
`CO_2` is formed as a result of :

A

reaction between ` Al^(3=)` and ` HCO_3^Θ`

B

reaction between hydrolysis product of `Al^(3+)` and `HCO_3^Θ`

C

reaction between hydrolysis product of `NaHCO_3` and `Al_2(SO_4)_3`

D

direct reaction between ` Al_2 (SO_4)_3` and ` NaHCO_3`

Text Solution

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The correct Answer is:
B
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