MCQ
The correct bond order in the following species is
- A$O_{2}^+ < O_{2}^- < O_2^{2+}$
- ✓$O_{2}^- < O_{2}^+ < O_2^{2+}$
- C$O_2^{2+} < O_{2}^+ < O_{2}^-$
- D$O_2^{2+} < O_{2}^- < O_{2}^+$
$\quad \quad \quad \quad \quad O_{2}^{-} \quad O_{2}^{+} \quad O_{2}^{+2}$
No. ofe $^{-} \quad 17 \quad\;\; 15 \quad\quad 14$
Bond order $1.5 \quad \;2.5 \quad \quad 3.0$
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Use your knowledge of alkene chemistry to predict a product even though you have never seen this reaction before
Assertion $A$ :Phenolphthalein is a $pH$ dependent indicator, remains colourless in acidic solution and gives pink colour in basic medium
Reason $R$ : Phenolphthalein is a weak acid. It doesn't dissociate in basic medium.
In the light of the above statements, choose the most appropriate answer from the options given below.
| $List-I$ | $List-II$ |
| ($P$) $XeF _2$ | ($1$) Trigonal bipyramidal and two lone pair of electrons |
| ($Q$) $XeF _4$ | ($2$) Tetrahedral and one lone pair of electrons |
| ($R$) $XeO _3$ | ($3$) Octahedral and two lone pair of electrons |
| ($S$) $XeO _3 F _2$ | ($4$) Trigonal bipyramidal and no lone pair of electrons |
| ($5$) Trigonal bipyramidal and three lone pair of electrons |