Fire extinguishers contain :
(A) conc. \( \mathrm{H}_{2} \mathrm{SO...
Fire extinguishers contain :
(A) conc. \( \mathrm{H}_{2} \mathrm{SO}_{4} \) solution
(B) \( \mathrm{H}_{2} \mathrm{SO}_{4} \) and \( \mathrm{NaHCO}_{3} \) solutions
\( \mathrm{P} \)
(C) \( \mathrm{NaHCO}_{3} \) solution
(D) \( \mathrm{CaCO}_{3} \) solution
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