pBlock ElementsII - Result Question 31
####31. The correct order of acidic strength is
(2000, 1M)
(a) $Cl _2 O _7>SO _2>P _4 O _{10}$
(b) $CO _2>N _2 O _5>SO _3$
(c) $Na _2 O>MgO>Al _2 O _3$
(d) $K _2 O>CaO>MgO$
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Solution:
- Corresponding acids are $HClO _4, H _2 SO _3$ and $H _3 PO _4$. Hence, the order of acidic strength is
$$ Cl _2 O _7>SO _2>P _4 O _{10} $$
