• # question_answer Fire extinguishers contain ${{H}_{2}}S{{O}_{4}}$ and [AFMC 1980] A) $CaC{{O}_{3}}$B) $N{{a}_{2}}C{{O}_{3}}$C) $NaHC{{O}_{3}}$D) $NaHC{{O}_{3}}$ and $N{{a}_{2}}C{{O}_{3}}$

$NaHC{{O}_{3}}$ and $N{{a}_{2}}C{{O}_{3}}$ decomposes to give $C{{O}_{2}}$ which extinguish fire.