Chemistry Quiz Based on NCERT for SSC 2016

Q1. Hydrogen bomb is based on the principle of—
(a) controlled fusion reaction 
(b) uncontrolled fission reaction
(c) controlled fission reaction 
(d) uncontrolled fusion reaction

Q2. Which gas emits from the rice field?
(a) ethane 
(b) nitrogen  
(c) methane
(d) All of the above
Q3. Pyrethrin used in mosquito coil is obtained from which of the following?
(a) a bacterium
(b) an insect 
(c) a seed plant
(d) a fungus
Q4. The blue colour of water in the sea. What is the reason behind the phenomenon? 
(a) Refraction of the blue light by the impurities in sea water. 
(b) Absorption of other colours except the blue colour by water molecules
(c) Refraction of blue sky by sea water. 
(d) Scattering of blue light by water molecules.
Q5. Which of the following is the end product of alcoholic fermentation?
(a) pyruvic acid 
(b) ethyl alcohol
(c) acetaldehyde
(d) formic acid
Q6. When iron is rusted, it is—
(a) Decomposed
(b) Reduced 
(c) Evaporated 
(d) Oxidised
Q7. Blood cells do not shrink in blood because blood is—
(a) hypertonic 
(b) isotonic 
(c) equimolar 
(d) hypotonic
Q8. Oils are purified by 
(a) Fractional distillation 
(b) Crystallisation
(c) Steam distillation
(d) Vacuum distillation
Q9. The deficiency of which one of the following leads to dental caries? 
(a) Fluorine
(b) Copper 
(c) Iron
(d) Zinc
Q10. Alum purifies muddy water by which process?
(a) Absorption 
(b) Coagulation
(c) Emulsification 
(d) Dialysis

Q11. The metal compound commonly found in Sindhoor or Kumkum is based on—
(a) Zinc
(b) Copper
(c) Lead
(d) Tin
Q12. Which one of the following is not present in cement? 
(a) Alum
(b) Alumina 
(c) Clay
(d) Gypsum
Q13. Which one of the following elements exists in liquid state at room temperature? 
(a) Mercury 
(b) Lead 
(c) Sodium 
(d) Calcium
Q14. Which one is a sublime substance? 
(a) Table salt 
(b) Iodine
(c) Sugar
(d) Potassium Iodide
Q15. Which one of the following statements is not true about cosmic rays? 
(a) They have very short wavelength
(b) They are electromagnetic waves
(c) They are made of highly energetic charged particles 
(d) They originated from the sun






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