4th Test – 3rd Batch Mock Test Series Leave a Comment / By abdulslambsn@gmail.com / July 23, 2025 4th Test – 3rd Batch Mock Test Series Your Good Name: Your City: Email: 1. The charge-to-mass ratio (e/m) of the electron was determined by: Rutherford Millikan Thomson Bohr None 2. Bohr’s model is applicable best for: Multi-electron atoms Hydrogen atom Helium ion Lithium None 3. Which of the following quantum numbers describes the shape of orbital? Principal (n) Magnetic (m) Azimuthal (l) Spin (s) None 4. The number of orbitals in the 3rd shell is: 4 9 6 3 None 5. The maximum number of electrons in a subshell is given by: 2n² 4l+2 2(2l+1) 2n None 6. Which quantum number has only two possible values? Principal Azimuthal Magnetic Spin None 7. In hydrogen atom, energy is quantized. This means: Energy can have any value Energy has fixed discrete values Energy is zero Electron is stationary None 8. An orbital can hold maximum: 4 electrons 1 electron 2 electrons with opposite spins 6 electrons None 9. The nucleus of an atom contains: Electrons and protons Protons and neutrons Electrons and neutrons All of these None 10. The energy difference between two levels in Bohr’s atom gives: Kinetic energy Ionization energy Frequency of radiation emitted Spin None 11. Which statement is true for an electron in an excited state? It loses energy It gains energy It stays in ground level It becomes neutral None 12. According to Hund’s Rule, electrons will fill degenerate orbitals: With opposite spins In the same orbital Singly first with parallel spins Randomly None 13. Which series of hydrogen spectrum lies in visible region? Lyman Paschen Balmer Brackett None 14. Which of the following is not a valid set of quantum numbers? n=2, l=1, m=0, s=+½ n=3, l=2, m=1, s=–½ n=2, l=2, m=0, s=+½ n=1, l=0, m=0, s=–½ None 15. The discovery of neutron is credited to: Rutherford Chadwick J.J. Thomson Goldstein None 16. The atomic number is equal to: Number of neutrons Number of protons Mass number Sum of protons and neutrons None 17. The subatomic particle that defines the identity of an atom is: Electron Neutron Proton Nucleus None 18. Which component of blood is responsible for oxygen transport? WBCs Plasma Platelets RBCs None 19. Hemoglobin is a protein found in: Plasma WBCs RBCs Platelets None 20. Which of the following is NOT a formed element in blood? Red blood cell White blood cell Platelet Plasma None 21. The average lifespan of a red blood cell is: 60 days 90 days 120 days 150 days None 22. The blood cells that are involved in immunity are: RBCs WBCs Platelets All of the above None 23. Blood is considered a: Muscular tissue Nervous tissue Connective tissue Epithelial tissue None 24. What percentage of blood is plasma? 25% 35% 55% 75% None 25. Which plasma protein is involved in blood clotting? Albumin Globulin Fibrinogen Hemoglobin None 26. The most abundant leukocytes in normal blood are: Lymphocytes Eosinophils Neutrophils Basophils None 27. Erythropoiesis (RBC production) occurs in: Kidney Bone marrow Spleen Liver None 28. The normal pH of blood is: 6.8 7.0 7.4 8.0 None 29. Which cell fragments help in blood clotting? Erythrocytes Leukocytes Platelets Monocytes None 30. Which vitamin is essential for blood clotting? Vitamin A Vitamin D Vitamin K Vitamin C None 31. Which ion is essential in the coagulation cascade? Mg²⁺ Na⁺ Ca²⁺ Cl⁻ None 32. Which blood component can pass through capillary walls to fight infection? Platelets Plasma RBCs WBCs None 33. WBCsWhich WBCs produce antibodies? Monocytes Neutrophils B lymphocytes Basophils None 34. Which organ filters and destroys old RBCs? Liver Kidney Spleen Bone marrow None 35. Which of the following subatomic particles has the least mass? Proton Neutron Electron Positron None 1 out of 4 Thanks For Submitting Your Quiz !!
