Oil interview questions
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Total Questions: 17
1. Which of the following is responsible for rancidity?
Correct Answer is : Aldehydes
2. The number of milligrams of KOH required for the saponification of one gram of oil or fat is called
Correct Answer is : Saponification number
3. Iodine number is defined as number of grams of iodine needed for the iodination of ________ gram/grams of oil or fat.
Correct Answer is : 100
4. Richert-Meissl number is defined as the volume of 0.1M KOH solution required for the neutralisation of _______ gram/grams of fat or oil.
Correct Answer is : 5
5. The stearate ion has a ________ carbons long hydrocarbon chain.
Correct Answer is : 17
6. Paraffins are obtained by______ process from petroleum.
Correct Answer is : fractional distillation
7. Paraffins are mostly used as_______
Correct Answer is : lubricant
8. Liquid paraffin is used as________
Correct Answer is : Medical purposes
9. General formula for Naphthenes
Correct Answer is : CnH2n
10. Naphthenes are also called as _______
Correct Answer is : cyclo alkanes
11. Naphthenes having more than 20 C-atoms are called as________
Correct Answer is : cyclo paraffins
12. Olefins are slightly soluble in _____
Correct Answer is : water
13. The chemical structure of Olefins can be given by ________
Correct Answer is : --(--CH2---CH--)--
14. Olefins containing 2 to 4 carbon atoms are ______ at ordinary temperature.
Correct Answer is : gaseous
15. Aromatic compounds are produced from ________
Correct Answer is : coal tar
16. Aromatic compounds are _____ with water.
Correct Answer is : immiscible
17. The flame colour of the aromatic compounds is ________
Correct Answer is : yellow
