MCQ
The compound in which ${C^*}$ uses $s{p^3}$ hybrids for bond formation is
- A$H\mathop C\limits^ + OOH$
- B${(N{H_2})_2}\mathop C\limits^ + O$
- ✓${(N{H_3})_3}\mathop C\limits^ + OH$$HgC{l_2}$
- D$C{H_3}\mathop C\limits^ + HO$
Where as in $HC^*OOH,\left( NH _2\right)_2{ }C^*O$ and $CH _3 C^*HO$ in that all ${ }_{ C }^*$ having double bonds so the are showing $sp^2$ hybridization
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Reason : $NF_3$ ionizes to give $F^-$ ions in aqueous solution.
| List$-I$ | List$-II$ |
| $A$ $H _3 O ^{+}$ | $I$ Tetrahedral |
| $B$ Acetylide anion | $II$ Linear |
| $C$ $NH _4^{+}$ | $III$ Pyramidal |
| $D$ $ClO _2^{-}$ | $IV$ Bent |
Choose the correct answer from the options given below :

$C ( s )+\frac{1}{2} O _{2}( g ) \rightarrow CO ( g )+100 \;kJ$
When coal of purity $60 \%$ is allowed to burn in presence of insufficient oxygen, $60 \%$ of carbon is converted into $'CO'$ and the remaining is converted into $'CO _{2}$$'$.
The heat generated when $0.6 \;kg$ of coal is burnt is