Question:
A metal nitrate reacts with $KI$ to give black precipitate which turns to orange on addition of $ KI $ . Metal is
A metal nitrate reacts with $KI$ to give black precipitate which turns to orange on addition of $ KI $ . Metal is
Updated On: Jun 23, 2023
- $ Hg^{2+}$
- $ Bi^{3+}$
- $ Pb^{2+}$
- $ Cu^{+}$
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The Correct Option is B
Solution and Explanation
Since, the metal nitrate gives black ppt with $KI$ which in excess of $KI$ turns into orange, the metal must be $B i^{3+}$ and the reactions are as follows
$B i^{3+}+3 I^{-} \rightarrow B i I_{3} \downarrow$
$Bi I _{3}+ I ^{-} \underset{\text{orange colour}}{[BiI_4^-]}$
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Organic Chemistry is a subset of chemistry dealing with compounds of carbon. Therefore, we can say that Organic chemistry is the chemistry of carbon compounds and is 200-225 years old. Carbon forms bond with itself to form long chains of hydrocarbons, e.g.CH4, methane and CH3-CH3 ethane. Carbon has the ability to form carbon-carbon bonds quite elaborately. Polymers like polyethylene is a linear chain where hundreds of CH2 are linked together.
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Importance of Organic Chemistry:
Organic chemistry is applicable in a variety of areas including-
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