MCQ
What is the net charge on ferrous ion
- ✓$+2$
- B$+3$
- C$+4$
- D$+5$
✓
Answer
Correct option: A.
$+2$
(a) $_{26}Fe\xrightarrow{{}}[Ar]\,3{{d}^{6}}4{{s}^{2}}$
$F{{e}^{++}}\xrightarrow{{}}\,[Ar]\,3{{d}^{6}}\,4{{s}^{0}}$
$F{{e}^{+++}}\xrightarrow{{}}\,[Ar]\,3{{d}^{5}}4{{s}^{0}}$
In $ +2 $ state $Fe$ is called Ferrous & in $+3$ state as ferric.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A mixture of propene and methane is obtained by the cracking of
Correct order of nucleophilicity
Identify the process in which change in the oxidation state is five :
Which type of bond is formed between similar atoms
Assertion : Electron affinity refers to an isolated atom’s attraction for an additional electron while electronegativity is the ability of an atom of an element to attract electrons towards itself in a shared pair of electrons.
Reason : Electron affinity is a relative number and electronegativity is experimentally measurable.
Reason : Electron affinity is a relative number and electronegativity is experimentally measurable.
Arrange the following in increasing order of reactivity towards nitration
→$A$.$p$-xylene $B$.bromobenzene $C$.mesitylene $D$,nitrobenzene $E$.benzene
Choose the correct answer from the options given below.
For the reaction :
→$N{H_3}(g) \rightleftharpoons \frac{1}{2}{N_2}\left( g \right) + \frac{3}{2}{H_2}(g);{K_p}$
The degree of dissociation $(\alpha )$ of $NH_3$ is related to total equilibrium pressure $(P^o)$ as
Configuration of the following compound is
In the reaction (image) The major product obtained is
The number of significant figures in $ 60.0001$ is
→