Which of the following is not a conjugate acid-base pair?
- A$HPO_3^{2-}, PO_3^{3-}$
- B$H_2PO_4^{-}, HPO_4^{2-}$
- C$H_2PO_4^{-}, H_3PO_4$
- D$H_2PO_4^{-}, PO_3^{3-}$
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Similar Questions
Which of the following is responsible for the production of biogas?
The number of $5$-digit numbers that are not divisible by $5$ and consist of different odd digits is:
Match the following columns:
Column-$I$ Column-$II$ $a$. Superior Vena Cava $p$. Carries deoxygenated blood to the lungs $b$. Inferior Vena Cava $q$. Carries oxygenated blood to the heart $c$. Pulmonary Artery $r$. Brings deoxygenated blood from lower body parts to the right atrium $d$. Pulmonary Vein $s$. Brings deoxygenated blood from upper body parts to the right atrium
| Column-$I$ | Column-$II$ |
|---|---|
| $a$. Superior Vena Cava | $p$. Carries deoxygenated blood to the lungs |
| $b$. Inferior Vena Cava | $q$. Carries oxygenated blood to the heart |
| $c$. Pulmonary Artery | $r$. Brings deoxygenated blood from lower body parts to the right atrium |
| $d$. Pulmonary Vein | $s$. Brings deoxygenated blood from upper body parts to the right atrium |
If ${N_a} = \{ an : n \in N \}$,then ${N_3} \cap {N_4} = $
The decreasing order of nucleophilicity among the following nucleophiles is:
$(I)$ $CH_3-COO^-$
$(II)$ $CH_3-O^-$
$(III)$ $CH_3-CH_2^-$
$(IV)$ $CH_3-SO_3^-$
$(I)$ $CH_3-COO^-$
$(II)$ $CH_3-O^-$
$(III)$ $CH_3-CH_2^-$
$(IV)$ $CH_3-SO_3^-$
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