Dear Students, Science is an important part in GENERAL STUDIES of SSC CGL and CPO. In SSC CGL, 5-8 questions were asked from this part. So we provide 15 Questions of SCIENCE every day .We have provided Science Notes too.
Q1. Ozone depletion in the atmosphere is mainly caused by
(a) sulphur dioxide
(b) nitrogen dioxide
(c) hydrogensulphide
Q2. The element with highest first ionization energy is
(a) hydrogen
(b) helium
(c) lithium
(d) sodium
Q3. An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is
(a) 17
(b) 19
(c) 36
(d) 53
Q4. Which of the following elements is not present in stainless steel?
(a) Iron
(b) Tungsten
(c) Chromium
(d) Nickel
Q5. TajMahal is greatly affected due to:
(a) Sound pollution
(b) Deforestation
(c) Acid rain
(d) None of these
Q6. Pollutant from motor car exhaust that causes mental disease is
(a) Lead
(b) NO2
(c) SO2
(d) Hg
Q7. A powerful eye irritant present in smog is
(a) nitric oxide
(b) sulphur dioxide
(c) peroxyacetyl nitrate
(d) carbon dioxide
Q8. The most reactive among the halogens is
(a) Fluorine
(b) Chlorine
(c) Bromine
(d) Iodine
Q9. Oxygen has (+) oxidation number only in
(a) OF2
(b) Cl2O
(c) H2O
(d) N2O
Q10. Which of the following is the major constituent of LPG?
(a) Methane
(b) Ethane
(c) Propane
(d) Butane
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) methylisocyanate
(d) chlorine
Q13. The element used for making solar cells is
(a) Magnesium
(b) Sodium
(c) Calcium
(d) Silicon
Q14. Which one of the following is not a characteristic feature of alloys?
They are
(a) Compounds
(b) Mixtures
(c) Solutions
(d) Homogeneous systems
Q15. Wood spirit is
(a) Methyl alcohol
(b) Ethyl alcohol
(c) Butyl alcohol
(d) Propyl alcohol
CRACK SSC CGL 2017
