MCQ
अम्लीय प्रबलता का बढ़ता हुआ क्रम है :
- A$H _2 O , C _2 H _2, C _6 H _5 OH , H _2 CO _3$
- B$C _2 H _2, H _2 O , H _2 CO _3, C _6 H _5 OH$
- C$H _2 O , C _2 H _2, H _2 CO _3, C _6 H _5 OH$
- ✓$C _2 H _2, H _2 O , C _6 H _5 OH , H _2 CO _3$
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