RPSC SSO 2019 Paper Narcotics

RPSC Senior Scientific Officer Narcotics Paper 2019
Total Questions – 100 Duration – Two hours

The presence of which of the following in drinking water is responsible for mottling of teeth?
(a) Mercury
(b) Iodide
(c) Chloride
(d) Fluoride

The absorption of light by molecules undergoing photochemical reactions generally results in
(a) phosphorescence
(b) fluorescence
(c) homolytic fission
(d) hetrolytic fission

Which of the following electromagnetic radiation is associated with highest energy?
(a) UV radiations
(b) Radio waves
(c) Infrared rays
(d) Gamma rays

Low temperature flame i.e. Air-coal gas mixture (1800 degree celcius) in AAS is not suitable for the determination of which element?
(a) Cu
(b) Pb
(c) Zn
(d) Be

Air-acetylene rich flame ( 2300 degree celcius) in AAS is suitable for the element analysis of
(a) Sn
(b) Ba
(c) Cr
(d) All of these

Hypsochromic efffect is
(a) lowers the wavelength of absorption
(b) lowers the intensity of absorption
(c) increases the wavelength of absorption
(d) increases the intensity of absorption

In ESR technique the sensitivity increases with ________magnetic field strength and __________tempearature.
(a) increasing , increasing
(b) decreasing, decreasing
(c) decreasing, increasing
(d) increasing, decreasing

Which of the following is not a part of the body buffer system?
(a) Bicarbonate buffer
(b) Haemoglobin buffer
(c) Phosphate buffer
(d) Sulphate buffer

What is necessary for the separation of inorganic ions by electrophoresis?
(a) Differences in valence states
(b) Melting point
(c) Humidity
(d) Sunlight

HPLC is NOT known as
(a) high performance liquid chromatography
(b) liquid chromatography
(c) high speed liquid chromatography
(d) high pressure liquid chromatography