EAN of Co in Co_2(CO)_8 will be - Vidyadip

MCQ

$EAN$ of $Co$ in $Co_2(CO)_8$ will be

A
$34$
B
$35$
C
$36$
✓
$37$

✓

Answer

Correct option: D.

$37$

d
$\left( NH _4\right)_3 PO _4 \cdot 12 MoO _3$

Let $X =$ oxidation state of $Mo$ in $MoO _3$

$X +(-2) \times 3=0$

$X =+6$

Need a full question paper?

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

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

$\begin{matrix}
\,\,\,Br\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Br\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
C{{H}_{2}}-CH=CH-C{{H}_{2}}\xrightarrow{Zn\,(dust)}(A) \\
\end{matrix}$

Above reaction is an example of $1,4$ -elimination. Predict the product.

The stability of dihalides of $Si, Ge, Sn$ and $Pb$ increases steadily in the sequence

The freezing point of a $1.00\, m$ aqueous solution of $HF$ is found to be $-1.91\,^oC$. The freezing point constant of water, $K_f$ is $1.86\, K\, kg \,mol^{-1}$. The percentage dissociation of $HF$ at this concentration is ................ $\%$

For the reaction at $298 \mathrm{~K}, 2 \mathrm{~A}+\mathrm{B} \rightarrow \mathrm{C} . \Delta \mathrm{H}$ $=400 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and $\Delta \mathrm{S}=0.2 \mathrm{~kJ} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}$. The reaction will become spontaneous above. . . . . . .$\mathrm{K}$

If meta-nitroaniline is chlorinated, the major product is :

Compound that will give positive Lassaigne's test for both nitrogen and halogen is

Nitrogen gas is liberated by thermal decomposition of

$D$ -Glucose $\overset {O{H^ - }} \longleftrightarrow $ $A + B; A$ and $B$ are

Which of the following vitamins is water- soluble ?

The incorrect statement regarding molecular orbital $(s)$ is