Redox Reactions And Electrochemistry Ques 440
Question: The oxidation number and the electronic configuration of sulphur in $ H_2SO_4 $ is [KCET 2002]
Options:
A) + 4; $ 1s^{2}2s^{2}2p^{6}3s^{2} $
B) + 2; $ 1s^{2}2s^{2}2p^{6}3s^{2}3p^{2} $
C) + 3; $ 1s^{2}2s^{2}2p^{6}3s^{2}3p^{1} $
D) + 6; $ 1s^{2}2s^{2}2p^{6} $
Show Answer
Answer:
Correct Answer: D
Solution:
$ H_2\overset{*}{\mathop{SO_4}}, $ $ 2\times (+1)+x+4\times (-2)=0 $ $ +2+x-8=0 $ ; $ x=8-2=+6 $ Electronic configuration of sulphur in $ H_2SO_4 $ is $ 1s^{2},2s^{2},2p^{6} $ .
