RPSC SSO 2019 Paper Chemistry

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

Tollen’s reagent is used for the analysis of which functional group?
(a) Aldehyde
(b) Ketone
(c) Ester
(d) Phenol

The rule on which ultraviolet spectroscopy is based
(a) Hook’s law
(b) Woodword’s law
(c) Beer-Lamber’s law
(d) Fieser Law

The decrease in the value of molar extinction coefficient of an absorption band due to substitutions or solvent of a molecule is called as
(a) Hyperchromic effect
(b) Hypsochromic shift
(c) Hypochromic effect
(d) Bathochromic shift

The region in which ESR spectra is observed
(a) Microwave region
(b) X-rays region
(c) Ultraviolet region
(d) Radio frequency region

The basicity of orthophosphorus acid is
(a) 1
(b) 3
(c) 4
(d) 2

The common example of buffer having pH of about 7.4 is
(a) Milk
(b) Blood
(c) Water
(d) Lime Water

The most widely used flame in atomic absorption spectroscopy is
(a) Air-Coal gas
(b) Air-Propane
(c) Air-Acetylene
(d) Oxy-Acetylene

The fixed or stationary phase in Gas liquid chromatography is
(a) Solid
(b) Liquid
(c) Gas
(d) Both Solid and Gas

The solvent having maximum eluting power is
(a) Benzene
(b) Acetone
(c) Ethanol
(d) Water

For which of the following compound, spraying reagent Ninhydrin is used?
(a) Alkaloids
(b) Inorganic cations
(c) Phenol
(d) Amino acid