21. Which of the following is not a chemical agent causing mutation? A. Nitrous acid B. UV light C. Ethedium bromide D. 5 - bromouracil 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
22. Which of the following instrument is most suitable to estimate heavy metals from the effluent? A. Chromatography B. Atomic absorption spectrophotometer C. Flame photometer D. Electrophoresis 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
23. One of the following platforms is used for whole cell fingerprinting? A. FTIR B. GC-MS C. LC-MS D. MALDI-TOF Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
24. Which of these required quantum nature of light for their explanation? A. Diffraction B. Polarisation C. Black body spectrum D. Interference 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
25. CO can be suitably determined by A. NDIR Spectrophotometry B. Potentiometry C. GC - MS D. Chemiluminescence 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
26. Which one of the following techniques can be used for determining the level of cadmium in soil? A. UV - Visible spectrophotometer B. Atomic absorption spectrophotometer C. XRD (X-ray diffraction) D. IR spectrometer 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
27. Sodium is usually estimated by which of the following analytical technique A. Flame photometry B. Coulometry C. High pressure liquid chromatography D. Visible spectrophotometry 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
28. Beer - Lambert's law defines A. The degree of absorption of monochromatic light by a homogenous medium B. Atomic absorption spectrophotometery C. Atomic emission spectrophotometry D. Gas chromatography 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
29. Which one of the following is the best tool to study the interacting residues in protein - ligand interaction? A. X - ray crystallography B. Circular dichroism spectroscopy C. HPLC D. Fluorescence spectroscopy 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
30. Hollow cathode lamp is used in A. UV-VIS spectrophotometer B. Flame photometer C. Atomic absorption spectrophotometer D. Sun photometer 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
