General Knowledge Questions And Answers :: General Science: part23



General Knowledge : General Science QUESTIONS AND ANSWERS :: part23 : 16 to 20

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :

16.Which of the following quantum numbers is/are required to describe the state of an electron ? 1. Principal 2.Azimuthal3. Magnetic 4. Spin

1 only
1 and 2
1, 2 and 3
1, 2, 3 and 4

17.Most soluble in water is :

camphor
sugar
sulphur
common salt

18.When an electric bulb breaks, there is a mild bang due to :

the chemical reaction between the enclosed gases
the compressed gases rushing out suddenly
the air rushing in to fill the evacuated space
none of the above

19.The fractionation of petroleum gives many products. What is the correct order in which the various fractions mentioned below separate from petroleum ? 1. Gasoline 2. Kerosene3. Diesel oil 4. Lubricating oil

1, 2, 3, 4
2, 3, 4, 1
3, 2, 1, 4
4, 2, 3, 1

20.Which form of phosphorus is used in safety matches ?

White phosphorus
Yellow phosphorus
Red phosphorus
Black phosphorus

More General Science QUESTIONS AND ANSWERS available in next pages

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