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Class 12 Chemistry – 50 most repeated MCQ Test

🧪 Class 12 Chemistry – Full 50 MCQ Test (30 Minutes)

Time Left: 30:00
Q1. Number of atoms in BCC unit cell?
Q2. Highest melting solid?
Q3. Schottky defect decreases density?
Q4. Coordination number of FCC?
Q5. Packing efficiency of BCC?
Q6. Unit of molality?
Q7. Law relating vapour pressure and mole fraction?
Q8. Van’t Hoff factor of NaCl?
Q9. Colligative properties depend on?
Q10. Osmosis occurs through?
Q11. Unit of molar conductivity?
Q12. Standard potential of SHE?
Q13. Oxidation occurs at?
Q14. Nernst equation relates EMF with?
Q15. Rusting is example of?
Q16. Unit of first order rate constant?
Q17. Half-life of first order reaction depends on?
Q18. Molecularity cannot be?
Q19. Catalyst increases rate by?
Q20. Order of reaction may be?
Q21. General electronic configuration of d-block elements?
Q22. KMnO₄ is a:
Q23. Lanthanoid contraction is due to:
Q24. Zn is not considered a transition metal because:
Q25. Colour in transition metal compounds is due to:
Q26. Coordination number of [Co(NH₃)₆]³⁺ is:
Q27. Ligands donating two pairs of electrons are called:
Q28. IUPAC name of K₄[Fe(CN)₆] is:
Q29. Which is a chelating ligand?
Q30. EAN rule was proposed by:
Q31. Lucas test is used to distinguish:
Q32. Rate of SN1 reaction depends on:
Q33. Cannizzaro reaction is shown by:
Q34. Strongest acid among phenol derivatives:
Q35. Kolbe reaction of phenol gives:
Q36. Glucose is a:
Q37. Peptide bond is:
Q38. Vitamin C deficiency causes:
Q39. DNA contains which sugar?
Q40. Insulin is a:
Q41. Nylon-6,6 is formed from:
Q42. PVC is polymer of:
Q43. Buna-S is a:
Q44. Teflon is polymer of:
Q45. Bakelite is:
Q46. Paracetamol is a:
Q47. Aspirin is classified as:
Q48. Detergents are sodium salts of:
Q49. Antacids neutralize:
Q50. Sweetening agent used in cold drinks:


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