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Q1. Which among the following is an example of metalloid?
Correct answer : 1
Q2. Ammonia gas is …………….. In nature
Correct answer : 4
Q3. What is added to Alumina to dissolve it in electrolytic tank?
Correct answer : 4
Q4. What is the percentage of water present in concentrated sulphuric acid?
Correct answer : 2
Q5. Hydrogen gas is ……………….. In nature.
Correct answer : 4
Q6. When the pH of a solution is 7.9, it is a .....
Correct answer : 2
Q7. Of the following which one is used as a rocket fuel?
Correct answer : 3
Q8. Of the following which one is a very reactive metal?
Correct answer : 4
Q9. Of the following which one affects the rate of reaction?
Correct answer : 3
Q10. Of the following which one is not a chemical reaction?
Correct answer : 3
Q11. Sulphur dioxide acts as a ....
Correct answer : 4
Q12. Sulphur dioxide is used in the field of ...
Correct answer : 4
Q13. What is the term for heating of natural rubber with sulphur at a definite temperature?
Correct answer : 4
Q14. The aqueous solution of ammonia turns……..
Correct answer : 4
Q15. Liquid Hydrogen is used in the field of……..
Correct answer : 2
Q16. Which of the following is used as a catalyst in the hydrogenation of oil to vanaspathy?
Correct answer : 2
Q17. What kind of reaction does hydrogen undergoes in the sun to form Helium and releases tremendous energy?
Correct answer : 3
Q18. White gold is prepared by alloying pure gold with….
Correct answer : 3
Q19. Of the following which one is used in the newspaper industry?
Correct answer : 1
Q20. What are the metals present in type metal?
Correct answer : 3
Q21. What metal is present in Haemoglobin
Correct answer : 4
Q22. Heating steel to bright red hot temperature and suddenly cooling it is called…
Correct answer : 3
Q23. Which of the following is known as the King of metals?
Correct answer : 1
Q24. Impure sand and rocks present along with the metal is called .....
Correct answer : 2
Q25. What substance is added during the metallurgy to remove the impurities?
Correct answer : 3
Q26. By which process volatile metals like Mercury and Zinc are purified?
Correct answer : 4
Q27. By which process Zinc blende and Galena are concentrated?
Correct answer : 1
Q28. Compound of Aluminium oxide `with impurities of Cobalt and Titanium Compound is better known as ...
Correct answer : 2
Q29. Ruby, the precious gem contains…….
Correct answer : 2
Q30. Non metals are good………………
Correct answer : 4
Q31. Which of the following is widely used in the Computers?
Correct answer : 2
Q32. Which of the following is used in the making of car parts, railway lines,bridges, pipes and axles?
Correct answer : 1
Q33. Of the following which one is used in the making of permanent magnets?
Correct answer : 4
Q34. Nickel Steel with 46% nickel is used in the manufacture of .....
Correct answer : 3
Q35. Nickel Steel with 36% nickel is used in the manufacture of…….
Correct answer : 1
Q36. Nickel steel with 2% nickel is used in the manufacture of ...
Correct answer : 4
Q37. The steel used in the making of radio valves is.......
Correct answer : 2
Q38. The Steen used for making surgical instruments and cutlery is….
Correct answer : 3
Q39. Addtion of Selenium Sulphide in glass gives …………. color
Correct answer : 4
Q40. Blue color is imparted to the glass by the addition of ....
Correct answer : 1
Q41. Ferric oxide gives ………… ………….. In glass
Correct answer : 2
Q42. Green colour is imparted to glass by adding……..
Correct answer : 1
Q43. Of the following, which one is used in endoscopes>
Correct answer : 2
Q44. Of the following which one is used for making bullet proof glass?
Correct answer : 3
Q45. Which one is used for making ovenware, injection ampules and flasks?
Correct answer : 2
Q46. Which glass has high resistance to heat and shock?
Correct answer : 1
Q47. Opticla glass has…..
Correct answer : 2
Q48. Soda glass is known as ...
Correct answer : 4
Q49. The reaction between glass and hydrofluoric acid is called ...
Correct answer : 3
Q50. The raw material required for the manufacture of glass are ....