Observe the following species: $AlCl_3, NH_3, H^{+}, Co^{3+}, OH^{-}, Mg^{2+}, BF_3, Cl^{-}$. How many Lewis acids are present in the above list?
- A$5$
- B$4$
- C$2$
- D$3$
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$BF_3$ is an acid according to the ....... concept.
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View SolutionThe conjugate base of the bicarbonate ion $(HCO_3^-)$ is:
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View SolutionWhich among the following is the conjugate base of $HClO_4$?
The conjugate base of $NH_4^{+}$ is
Match the following acids in List-$I$ with their respective acid dissociation constants $(K_a)$ in List-$II$:
List-$I$ (Acid) List-$II$ $(K_a)$ $A$. Phenol $I$. $1 \times 10^{-13}$ $B$. Benzoic acid $II$. $3.0 \times 10^{-8}$ $C$. $HClO$ $III$. $1.0 \times 10^{-10}$ $D$. $CH_3COOH$ $IV$. $6.5 \times 10^{-5}$ $V$. $1.75 \times 10^{-5}$
The correct match is:
| List-$I$ (Acid) | List-$II$ $(K_a)$ |
|---|---|
| $A$. Phenol | $I$. $1 \times 10^{-13}$ |
| $B$. Benzoic acid | $II$. $3.0 \times 10^{-8}$ |
| $C$. $HClO$ | $III$. $1.0 \times 10^{-10}$ |
| $D$. $CH_3COOH$ | $IV$. $6.5 \times 10^{-5}$ |
| $V$. $1.75 \times 10^{-5}$ |
The correct match is:
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