MUS MIRI AUN
Terminal examinations Fall 2020 (FA20) (Open Book Online Paper)
BS Chemistry / Semester - 1
Aic Chemistry
Time 24 hours
structions:
1- Attempt all questions.
2- Answer to the point and use your own words. If you copy word by words from the textbook, internet orf
on her student paper, you will get zero marks.
3- Answer sheet should be handwritten with a blue ink pen.
4- Write your Roll no., name, signature, and page number on every sheet
5- Submk hard copy to paper collection center within submission time. After given time to answer sheet wil
Ibe accepted whatever the reason is
Part-1 (Theory)
Q.1
(a) Several resonance structures are possible for each of the following ions. For each, draw thes
e resonance structures, assign formal charges, and select the resonance structure likely to provi
de the best description for the ion (12)
1 Selenocyanate, SeCN
Thuofomate on, (HCS0]
A Drocarbonate |S.CO)?
Answers
Explanation:
MUS MIRI AUN
Terminal examinations Fall 2020 (FA20) (Open Book Online Paper)
BS Chemistry / Semester - 1
Aic Chemistry
Time 24 hours
structions:
1- Attempt all questions.
2- Answer to the point and use your own words. If you copy word by words from the textbook, internet orf
on her student paper, you will get zero marks.
3- Answer sheet should be handwritten with a blue ink pen.
4- Write your Roll no., name, signature, and page number on every sheet
5- Submk hard copy to paper collection center within submission time. After given time to answer sheet wil
Ibe accepted whatever the reason is
Part-1 (Theory)
Q.1
(a) Several resonance structures are possible for each of the following ions. For each, draw thes
e resonance structures, assign formal charges, and select the resonance structure likely to provi
de the best description for the ion (12)
1 Selenocyanate, SeCN
Thuofomate on, (HCS0]
A Drocarbonate |S.CO)?