MCQ
Which of the following orbitals represents $3d_{z^2}$ orbitals ?
- A

- B

- ✓

- D






Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Rate constant of reaction $K = 1 0^{-2}\ min^{-1}$ Which is correct statement ? $(\ln\, 2 = 0. 7)$

$Cl_2(aq) + H_2S(aq) \to S(s) + 2H^+(aq) + 2Cl^-(aq)$
The rate equation for this reaction is rate $= k[Cl_2][H_2S]$ Which of these mechanisms is/are consistent with this rate equation ?
$A.\,C{l_2} + {H_2}S \to {H^ + } + C{l^ - } + C{l^ + } + H{S^- }$ (slow)
$C{l^ + } + H{S^ - } \to {H^ + } + C{l^ - } + {S}$ (fast)
$B.\, H_2S \Leftrightarrow H^+ + HS^-$ (fast equilibrium)
$Cl_2 + HS^-\to 2Cl^-+ H^+ + S$ (slow)