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Q1. Of the following, which one is used in the making of space satellites?
Correct answer : 2
Q2. Of the following factors, which one does not affect the rate of the reaction?
Correct answer : 1
Q3. The Law of conservation of mass is applicable to which of the following reactions?
Correct answer : 1
Q4. By which process sulphur is extracted from the earth's crust?
Correct answer : 1
Q5. Sodium silicate solution is also known as……
Correct answer : 3
Q6. Hydrogen is a non-metal and has only……… electron/s
Correct answer : 1
Q7. Sulphur is used in which of the following fields?
Correct answer : 4
Q8. Of the following which one is used for vulcanization of rubber?
Correct answer : 2
Q9. The first most abundant element occuring in the earth's crust is…………..
Correct answer : 2
Q10. Of the following which one is used in manufacturing cutting and grinding tools?
Correct answer : 3
Q11. Silicone is used in and as ....
Correct answer : 4
Q12. Organo silicon polymers are known as .....
Correct answer : 4
Q13. Which is the second most abundant element found in the earth's crust?
Correct answer : 3
Q14. Pipes, stoves, and hot water radiators are manufactured with…..
Correct answer : 2
Q15. The flux used during extraction of iron is........
Correct answer : 2
Q16. By which process Bauxite ore is processed?
Correct answer : 2
Q17. Electroplating with zinc is known as…..
Correct answer : 4
Q18. Of the following which one rusts easily?
Correct answer : 3
Q19. The second most abundant metal in the earth's crust is……….
Correct answer : 1
Q20. From which of the following, helmets and steels are made of?
Correct answer : 2
Q21. Copper pyrites is concentrated by……..
Correct answer : 3
Q22. Of the following which one is not a coinage metal?
Correct answer : 2
Q23. What happens when fluorspar is added in the Hall's electrolytic process of aluminium?
Correct answer : 3
Q24. Which one of the following is the gangue present in the haematite ore?
Correct answer : 1
Q25. By what process Germanium is purified?
Correct answer : 2
Q26. Pick the metal that does not react with steam?
Correct answer : 4
Q27. What is the term for the process of extraction of pure metals from their ores?
Correct answer : 3
Q28. Dissolution of sodium carbonate in water is an example of………… ....
Correct answer : 1
Q29. With the increase in concentration, the rate of the reaction………….
Correct answer : 3
Q30. Rusting of an iron is an example of………… reaction
Correct answer : 2
Q31. Of the following, which one affects the rate of the reaction?
Correct answer : 4
Q32. Of the following, which one is an example of photo chemical reaction?
Correct answer : 1
Q33. A divalent element has 65.38 as its atomic mass. What is its equivalent mass?
Correct answer : 2
Q34. The volume occupied by 1 mole of the compound at STP is…………..
Correct answer : 4
Q35. What is the term for a substance which accepts one or more electrons from the other?
Correct answer : 3
Q36. Pick the correct orbital of an electron with quantum number n=3 and l=0.
Correct answer : 2
Q37. If the n value of an electron is 2, what would its l value?
Correct answer : 4
Q38. Oxidation number of hydrogen in LiH is……….
Correct answer : 1
Q39. The quantum number which gives the maximum number of electrons in a shell is …………….. Quantum number.
Correct answer : 4
Q40. The direction of spin of an electron in an atomic orbital is explained by……………. Quantum number.
Correct answer : 1
Q41. In an atom, no two electrons have the same set of four quantum numbers.How do we call this phenomenon?
Correct answer : 2
Q42. Among the following, which one always has -1 oxidation state?
Correct answer : 3
Q43. The oxidation number of hydrogen in metallic hydide is………….
Correct answer : 2
Q44. If the electron is present in 1 s orbital, what would be the values of n and l?
Correct answer : 1
Q45. If n=3, what can be the possible values of l?
Correct answer : 2
Q46. What is the term for the plane at which electron density is zero?
Correct answer : 3
Q47. Of the following, which one is called the "(n+1) rule?
Correct answer : 1
Q48. Magnetic quantum number represents which of the following?
Correct answer : 3
Q49. Azimuthal quantum number represents which of the following?
Correct answer : 4
Q50. Of the following, which one represents the orientation of an atomic orbital in space?