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Facultad De Medicina Mexicali
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June_2017_QP Paper_1_OCR A Chemistry_AS_Level
- Exam (elaborations) • 24 pages • 2021
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1 Which ion has a different number of electrons from the other three ions?
A Ga3+
B Cl −
C S2−
D Ca2+
Your answer [1]
2 An organic compound has the composition by mass:
C, 53.33 %; H, 11.11%; O, 35.56%.
What is the empirical formula of the organic compound?
A C4H8O2
B C4H10O2
C C2H4O
D C2H5O
Your answer [1]
3 Samples of four hydrocarbons are completely burnt under the same conditions of temperature
and pressure.
Which sample produces the greatest volume of CO2?
...
Exam (elaborations)
June_2017_QP Paper_1_OCR A Chemistry_AS_Level
Last document update:
ago
1 Which ion has a different number of electrons from the other three ions? A Ga3+ B Cl − C S2− D Ca2+ Your answer [1] 2 An organic compound has the composition by mass: C, 53.33 %; H, 11.11%; O, 35.56%. What is the empirical formula of the organic compound? A C4H8O2 B C4H10O2 C C2H4O D C2H5O Your answer [1] 3 Samples of four hydrocarbons are completely burnt under the same conditions of temperature and pressure. Which sample produces the greatest volume of CO2? ...
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