MCQ
Which of the following species has the highest electron affinity
- ✓$F$
- B$O$
- C${O^ - }$
- D$N{a^ + }$
✓
Answer
Correct option: A.
$F$
a
(a) Halogens have the highest ${e^ - }$ affinity.
(a) Halogens have the highest ${e^ - }$ affinity.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Given electrode potentials :
→$Fe^{3+} + e \to Fe^{2+} ;$ $E^o = 0.771\, volts$
$I_2 + 2e\to 2I^-;$ $E^o = 0.536\, volts$
$E^o$ cell for the cell reaction
$2Fe^{3+} + 2I^-\to 2Fe^{2+} + I_2$ is
Among the given pairs, in which pair second compound has less enol content than first compound
The color of $KMnO_4$ is due to :
→Which of the following is a conjugated acid-base pair
When ethyl alcohol $({C_2}{H_5}OH)$ is mixed with ammonia and passed over heated alumina, the compound formed is
→Which of the following represents the correct order of the acidity in the given compounds?
The substituents $R_1$ and $R_2$ for nine peptides are listed in the table given below. How many of these peptides are positively charged at $pH =7.0$ ? $Image$
→| Peptide | $R _1$ | $R _2$ |
| $I$ | $H$ | $H$ |
| $II$ | $H$ | $CH _3$ |
| $III$ | $CH _2 COOH$ | $H$ |
| $IV$ | $CH _2 CONH _2$ | $( CH _2)_4 NH _2$ |
| $V$ | $CH _2 CONH _2$ | $CH _2 CONH _2$ |
| $VI$ | $( CH _2)_4 NH _2$ | $( CH _2)_4 NH _2$ |
| $VII$ | $CH _2 COOH$ | $CH _2 CONH _2$ |
| $VIII$ | $CH _2 OH$ | $( CH _2)_4 NH _2$ |
| $IX$ | $( CH _2)_4 NH _2$ | $CH _3$ |
Which among the following statement is not correct for above reaction ?
The refluxing of ${(C{H_3})_2}NCOC{H_3}$ with acid gives
→In respect of the equation $k = A{e^{ - {E_a}/RT}}$ in chemical kinetics, which one of the following statement is correct
→