MCQ
The shape of $CH_3^ + $ species is
  • A
    Tetrahedral
  • B
    Square planar
  • Trigonal planar
  • D
    Linear

Answer

Correct option: C.
Trigonal planar
(c) It shows $s{p^2}$-hybridization and show trigonal planar structure.

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For the reaction $X ( s ) \rightleftharpoons Y ( s )+ Z ( g )$, the plot of $\ln \frac{ p _z}{ p ^\theta}$ versus $\frac{10^4}{T}$ is given below (in solid line), where $p_z$ is the pressure (in bar) of the gas $Z$ at temperature $T$ and $P ^{\ominus}=1$ bar.

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Malonic acid - $pK_2$
Heptanedioic acid - $pK_3$

where $pK_1 , pK_2, pK_3$ are first ionization constants. Incorrect order is