MCQ
The oxidation state of the underlined element in the given compound is:
BaCl2
BaCl2
- A+2
- B-2
- C0
- DNone of these
Explanation:
BaCl2
⇒ x + (−2) = 0
⇒ x = 2
As chlorine needs only one electron to get octet.
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$2 C _{( s )}+ O _{2( g )} \rightarrow 2 CO ( g )$
When $12\,g$ carbon is burnt in $48\,g$ of oxygen, the volume of carbon monoxide produced is $......\times 10^{-1}\,L$ at STP [nearest integer]
[Given : Assume $CO$ as ideal gas, Mass of $C$ is $12\,g\,mol ^{-1}$, Mass of $O$ is $16\,g\,mol ^{-1}$ and molar volume of an ideal gas at STP is $22.7\,L\, mol ^{-1}$ ]
