RPSC SSO 2019 Paper Arson and Explosives

RPSC Senior Scientific Officer Arson and Explosives Paper 2019
Total Questions – 100 Duration – Two hours

Lassaigne’s test is observed in which one of the following organic compound?
(a) Urea
(b) Hydrazine
(c) Hydroxyl amine
(d) Both Hydrazine and Hydroxyl amine

Which statement is not correct about the t-test?
(a) Its use considered best only when sample size is less than or equal to 30
(b) It is normally known as teacher’s t-distribution
(c) It is used when standard deviation is also not known
(d) The value of t-distribution is in between – infinity to + infinity

Which of the following organic compound is known as Aniline yellow?
(a) p-Nitroazobenzene
(b) p-Aminoazobenzene
(c) p-Hydroxyazobenzene
(d) p-Nitrosobenzene

Which one of the following will give positive iodoform test?
(a) Acetophenone
(b) Benzaldehyde
(c) Diphenyl ketone
(d) Phenol

Benzene displays the following absorption bands. Which of these is called as K ban?
(a) 184 nm
(b) 204 nm
(c) 256 nm
(d) None of these

The most common source of radiation being used in flourometric analysis is
(a) tungsten lamp
(b) Mercury arc lamp
(c) Hydrogen lamp
(d) None of these

Mass spectrometry is not used for
(a) Viral ions analysis
(b) Molecular weight determination of glucose
(c) Amino acid sequences
(d) Free radicals

Conductometric titration can be employed for
(a) Dilute solution
(b) Coloured solution
(c) Neutralisation
(d) All of the above

X-Rays is used for determination of
(a) Teeth sample
(b) New alloys in space
(c) Toxic elements Cd, As, Hg, Mo, Sn
(d) All of the above

Which one of the following is not determined by XRF(X-Ray)?
(a) Sulphur in protein
(b) Chlorides in blood serum
(c) Heavy metal contamination of vegetables
(d) Organic elements C,H, N, O analysis.