Chemistry Quiz Based on NCERT for SSC 2016

Q1. Which one of the following is used as a moderator in the nuclear reactor? 
(a) Thorium 
(b) Graphite 
(c) Radium 
(d) Ordinary water

Q2. Which of the following chemicals is used in foam fire extinguishers? 
(a) Aluminium sulphate 
(b) Copper sulphate 
(c) Cobalt sulphate 
(d) Nickel sulphate
Q3. Which one of the following elements is used in the manufacture of safety matches? 
(a) Graphite 
(b) Phosphorus 
(c) Silicon 
(d) Sodium

Q4. Which one is not metal? 
(a) Sulphur 
(b) Sugar 
(c) Nitrogen 
(d) All of these

Q5. Which of the following is the first metal used by man? 
(a) gold 
(b) silver 
(c) copper 
(d) iron

Q6. In isotopes the number of neutrons are—
(a) same 
(b) different 
(c) both 
(d) None of these

Q7. Paraffin wax is 
(a) Ester 
(b) Alcohol 
(c) Unsaturated hydrocarbon 
(d) Saturated hydrocarbon

Q8. pH of human body varies within the range of 
(a) 6.0 to 6.5 
(b) 5.5 to 5.8 
(c) 7.0 to 7.8 
(d) 7.0 to 11.0

Q9. Which has maximum calorific value? 
(a) Fat 
(b) Protein 
(c) Carbohydrate 
(d) Amino acid

Q10. Mildness of shaving cream is enriched by which one of the following? 
(a) Sodium silicate 
(b) Free fatty acid 
(c) Potassium carbonate 
(d) Sodium chloride

Q11. Carborundum is a compound of 
(a) Ca 
(b) Ge 
(c) Si 
(d) S

Q12. Silicon is used in— 
(a) solar energy devices 
(b) semiconductors 
(c) transistors 
(d) All of these

Q13. Soap helps in cleaning clothes, because—
(a) chemical of soap change 
(b) it increases the surface tension of the solution 
(c) it absorbs the dirt 
(d) it lowers the surface tension of the solution

Q14. Which of the following important metal is used with iron to produce stainless steel?
(a) carbon 
(b) tin 
(c) chromium 
(d) aluminium

Q15. Solder is an alloy of 
(a) tin and lead 
(b) tin and copper 
(c) tin, copper and zinc 
(d) tin, lead and zinc





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