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. Which is the purest form of iron?
(a) Steel
(b) Cast iron
(c) Pig iron
(d) Wrought iron
Q2. Detergents used for cleaning clothes and utensils contain
(a) nitrates
(b) bicarbonates
(c) sulphonates
(d) bismuthates
Q3. The candela is one of the seven base units in the SI system. It measures…?
(a) Magnetism
(b) Luminous intensity
(c) Combustion rate
(d) Luminance
Q4. Curd is sour due to presence of
(a) Tartaric acid
(b) Lactic acid
(c) Acetic acid
(d) Oxalic acid
Q5. Tear gas is:
(a) Chloroprene
(b) Carbonyl chloride
(c) Nitrous oxide
(d) Bleaching powder
Q6. Aluminum can be purified by
(a) oxidation
(b) distillation
(c) electrolysis
(d) ozonolysis
Q7. At room temperature, which element conducts electricity better than any other element?
(a) Pb
(b) Au
(c) Ag
(d) Cu
Q8. Sour taste of ‘Coca Cola’ is due to the presence of
(a) acetic acid
(b) phosphoric acid
(c) hydrochloric acid
(d) formic acid
Q9. ‘Plaster of Paris’ is made by partial dehydration of
(a) Epsom salt
(b) gypsum salt
(c) blue vitriol
(d) green vitriol
Q10. Petroleum is a mixture of
(a) elements
(b) hydrocarbons
(c) polymers
(d) salts
Q11. Polythene is polymer of
(a) Ethylene
(b) Propylene
(c) Acetylene
(d) Aniline
Q12. Who discovered the atom bomb?
(a) Madam Curie
(b) Pierre Curie
(c) Otto Hahn
(d) Albert Einstein
Q13. Percentage of lead in lead pencils is
(a) 0
(b) 31-66
(c) 40
(d) 80
Q14. What scientist discovered the radioactive element radium?
(a) Isaac Newton
(b) Albert Einstein
(c) Benjamin Franklin
(d) Marie Curie
Q15. The residue left after extracting juice from sugarbeet and sugarcane is called
(a) molasses
(b) bagasse
(c) whey
(d) biomass
CRACK SSC CGL 2017
