RPSC SSO 2019 Paper Documents – Part A

RPSC Senior Scientific Officer Documents Paper 2019 Part A- Chemistry
Total Questions – 100 Duration – Two hours
Part A – Chemistry – 60 Questions

The method used for quantitative analysis of halogens is
(a) Duma’s method
(b) Kjeldahl’s method
(c) Carius method
(d) Lassigne’s method

A set of measurement of an experimental data shows the values 58.7, 58.9 and 58.8 while the true value is 54.4, thus the experiemental data shows
(a) more accurate less precise
(b) more accurate more precise
(c) more accurate more precise
(d) less accurate less precise

In which of the following reagent sodium potassium tartrate is used?
(a) Tollen’s reagent
(b) Fehling ‘A’
(c) Bayer’s reagent
(d) Fehling ‘B’

Tollen’s reagent is
(a) Ammonical solution of silver nitrate
(b) Alkaline solution of curpic ions
(c) Alkaline solution of sodium potassium tartrate
(d) Aqueous solution of K2Cr2O7

Which one of the following region in IR spectroscopy is known as finger print region ?
(a) 4000 – 650 per cm
(b) 1500 – 500 per cm
(c) 650 – 900 per cm
(d) 1300 – 1380 per cm

Nitrogen rule is related to
(a) Mass spectroscopy
(b) ESR spectroscopy
(c) IR spectroscopy
(d) UV spectroscopy

Solvant among the following having maximum eluting power is
(a) Carbon tetra Cloride
(b) Pyridine
(c) Benzene
(d) Ethanol

The electrode widely used in electro chromatography is
(a) Calomel electrode
(b) Mercury electrode
(c) Platinum electrode
(d) Zinc electrode

The detector not used in Gas chromotography is
(a) Thermal conductivity detector
(b) Flame ionisation detector
(c) Flame photometric detector
(d) Refractive index detector

The fixed or stationary phase in Gas solid chromatography is
(a) Liquid
(b) Gas
(c) Solid
(d) Liquid Sulphur dioxide