MCQ
द्रव $SO _2$ जल से क्रिया करके क्या बनाता है?
  • $H _2 SO _3$
  • B
    $HNO _3$
  • C
    $CaCl _2$
  • D
    $H _3 O ^{+}$

Answer

Correct option: A.
$H _2 SO _3$
A

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