41. Which of the following would be the fastest way to kill endospores? A. Autoclave at 121°C B. Tincture of soap C. Hot air oven at 180°C D. Chlorox solution Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
42. In gas chromatography, the basis for separation of the components of the volatile material is the difference in A. Partition coefficients B. Conductivity C. Molecular weight D. Molarity Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
43. The ionizing radiation, which affects the activities of most of the enzymes is due to A. Photoemission of electron B. Interaction of α - particles, β - and γ - rays with enzymes C. Interaction of electron with body D. Interaction of radiation with tissue Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
44. For identifying the distribution of a specific protein in a tissue, which one of the following types of immunofluorescence microscopic methods has attained the highest level of resolution? A. Indirect immunofluorescence microscopy B. Confocal microscopy C. Confocal microscopy with de-convolution D. Wide angle microscopy with de-convolution Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
45. Lyophilisation is a process of A. Freeze drying B. Irradiation C. Heat drying D. Chemical treatment Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
46. How is fluoride removed from drinking water? A. Reverse osmosis B. Distillation C. Freezing water D. Boiling water Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
47. Which of the following techniques is most appropriate for determining crystalline structure of environmental samples? A. Infrared spectroscopy B. X - ray diffraction C. Microspectrophotometry D. Raman spectroscopy Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
48. Which of the following physical treatments cause damage to bacterial cells by producing free radicals? A. Ultraviolet light B. Gamma ray irradiation C. Microwave irradiation D. Heat Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
49. An autoclave normally sterilizes material by heating the material to . . . . . . . . for . . . . . . . . minute at . . . . . . . . psi A. 100, 10, 30 B. 121.5, 15, 15 C. 110, 30, 5 D. 120, 30, 10 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
50. In colloidal chemical substance, the light undergoes A. Diffraction B. Polarization C. Scattering D. Total internal reflection Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
