(a) 2, 8, 10
(b) 2, 6, 8, 4
(c) 2, 8, 8, 2
(d) 2, 10, 8
Q2. The most important ore of lead is
(a) Galena
(b) Magnetite
(c) Pyrolusite
(d) Siderite
Q3. Edward Jenner is associated with
(a) Cholera
(b) Typhoid
(c) Small Pox
(d) Paralysis
Q4. Iodine can be separated from a mixture of Iodine and Potassium Chloride by
(a) sedimentation
(b) filtration
(c) sublimation
(d) distillation
Q5. The gas that usually causes explosions in coal mines is
(a) Hydrogen
(b) Carbon monoxide
(c) Air
(d) Methane
Q6. The deficiency of vitamin B causes :
(a) Beri-Beri
(b) Scurvy
(c) Dermatitis
(d) Phynoderma
Q7. When Hydrogen starts burning in air, it produces?
(a) Ammonia
(b) Water
(c) Methane
(d) Carbonic Acid
Q8. The most abundant constituent of atmospheric air is:
(a) carbon
(b) hydrogen
(c) oxygen
(d) nitrogen
Q9. Which gas is used for converting vegetable oils into saturated fats?
(a) H_2
(b) O_2
(c) CI_2
(d) SO_2
(a) fluorine
(b) chlorine
(c) bromine
(d) iodine
Q11. An electric iron has a heating element made of:
(a) Copper
(b) Tungsten
(c) Nichrome
(d) Zinc
Q12. The Bhopal tragedy was caused by the gas
(a) phosgene
(b) carbon monoxide
(c) methyl isocyanate
(d) chlorine
Q13. Which of the following is an iron ore?
(a) Bauxite
(b) Magnetite
(c) Lignite
(d) Nitrite
Q14. Wood spirit is
(a) Methyl alcohol
(b) Ethyl alcohol
(c) Butyl alcohol
(d) Propyl alcohol
Q15. The Vitamin which helps in clotting of blood is:
(a) A
(b) D
(c) B
(d) K
CRACK SSC CGL 2017
