In comparison to sour cruide oil, the sweet crude oil : 
1. has less sulphur content
2. sourced only from North Sea
3. is expensive
Which of the above is / are correct statements? 

Answer: [C] Only 1 & 3

Sweet crude oil contains less than 0.5% Sulphur, while sour crude contains more than 0.5%.  Sweet crude oil has a sweet aroma because of less sulphur.  The low quantity of sulphur makes it more suitable / easier to produce gasoline that is why sweet crude oil is expensive. Presence of sulphur makes it toxic and also the production of gasoline is expensive. Brent Crude Oil is a sweet crude oil mainly produced in North Sea.  

This question is a part of GKToday's Integrated IAS General Studies Module