MCQ
$C{H_2} = C{H_2}\xrightarrow{{B{r_2}/{H_2}O}}A,$ In the above reaction the compound $A$ is
- ✓Ethylene bromohydrin
- B$1, 2-$ dibromo ethane
- CEthanol
- DNone of these
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$A$. $\mathrm{Ti}^{3+}$ $B$. $\mathrm{Cr}^{2+}$ $C$. $\mathrm{Mn}^{2+}$ $D$.$\mathrm{Fe}^{2+}$ $E$. $\mathrm{Sc}^{3+}$
Choose the most appropriate answer from the options given below.
| List-I (Complex) | List-II (Hybridisation & Magnetic characters) | ||
| (A) | $\left[ MnBr _4\right]^{2-}$ | (I) | $d ^2 sp ^3 \&$ diamagnetic |
| (B) | $\left[ FeF _6\right]^3$ | (II) | $sp ^3 d^2 \&$ paramagnetic |
| (C) | $\left[ Co \left( C _2 O _4\right)_3\right]^3$ | (III) | $sp ^3 \&$ diamagnetic |
| (D) | $\left[ Ni ( CO )_4\right]$ | (IV) | $sp ^3 \&$ paramagnetic |
| Rate $mol\,L^{-1}\,s^{-1}$ | $[A]$ $mol\,L^{-1}$ | $[B]$ $mol\,L^{-1}$ |
| $0.10$ | $20$ | $0.5$ |
| $0.40$ | $x$ | $0.5$ |
| $0.80$ | $40$ | $y$ |
What is the value of $x$ and $y ?$