Dear Students, SSC CGL Pre 2017 Exam is scheduled tentatively in the month of AUGUST 2017. At SSC ADDA, we are providing 15 important SCIENCE QUESTIONS based on previous year. SSC repeats many previous years questions. Every day, we provide quizzes on all the topics of General Studies.
Q1. Properties of elements are determined by
(a) Atomic number
(b) Atomic weight
(c) Neutrons
(d) Protons
Q2. The raw materials used in the manufacture of glass are
(a) Sand, soda and limestone
(b) Sand, charcoal and soda
(c) Limestone, charcoal and sulphur
(d) Sand, sulphur and soda
Q3. Acetyl salicylic acid is an intermediate compound in the manufacture of
(a) Penicillin
(b) Streptomycin
(c) Aspirin
(d) Sulfapyridine
(a) copper
(b) iron
(c) mercury
(d) lead
Q5. Sindur, the sacred material used by Hindus, is a compound of
(a) Zinc
(b) Lead
(c) Tin
(d) Copper
Q6. Sodium in kept in kerosene because it
(a) Remains fresh
(b) Starts burning in air
(c) Is saved from evaporation
(d) None of these
Q7. Starch is a polymer of
(a) Glucose units
(b) Fructose units
(c) Galactose units
(d) None of the above
Q8. Steel can be softened to any desired extent by
(a) Tempering
(b) Annealing
(c) Nitriding
(d) Case hardening
Q9. Stereoisomers which are related to each other as non-superposable mirror images are called
(a) Enantiomers
(b) Diastereomers
(c) Racemic compounds
(d) Meso compounds
Q10. Which of the following has the same atomic number and atomic weight?
(a) Hydrogen
(b) Helium
(c) Oxygen
(d) Nitrogen
Q11. Glass is a good
(a) Insulator
(b) Semi-conductor
(c) Electrical conductor
(d) Thermal conductor
Q12. Which of these metals is used in storage batteries?
(a) Copper
(b) Lead
(c) Aluminium
(d) Zinc
Q13. The acetic acid content of vinegar is
(a) 10%
(b) 50%
(c) 1%
(d) 5-8%
Q14. Which of the following oxides will give a metal on heating?
(a) AI_2 O_3
(b) HgO
(c) ZnO
(d) TiO_2
Q15. The branch of chemistry dealing with the accurate determination of the amounts of various substances is called
(a) Biochemistry
(b) Inorganic chemistry
(c) Organometallic chemistry
(d) Analytical chemistry
