MCQ
Which of the following set represents weak acids?
- A$HCOOH , HCl , H _2 S$
- B$CH _3 COOH , HI , H _2 CO _3$
- C$HNO _3, HF _{,} H _2 SO _4$
- ✓$HCOOH , HF , H _2 S$
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