Kerala PSC Previous Years Question Paper & Answer
Page:13
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Non Vocational Teacher Chemistry (By Transfer)' And exam conducted in the year 2023. And Question paper code was '162/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
B:-T2
೮-4,
0:-42
Correct Answer:- Option-B
Question63:-Select the compound which will not give one signal in proton-NMR
spectrum:
Ai-CH;COOCcH;
B:-CH,0CH,
Ci-H,C=C=CH,
D:-All the above
Correct Answer:- Option-A
Question64:-If you conducting a two-sample t-test for independent samples, which
assumption is NOT required?
A:-Normality of data within each sample
B:-Equal sample sizes
C:-Homogenity of variances
D:-Independence of observations
Correct Answer:- Option-B
Question65:-Mention the type of chromatography often used for the purification of
proteins and nucleic acids.
A:-Gas Chromatography
B:-Size-exclusion chromatography
C:-Reversed-phase chromatography
D:-Thin-layer chromatography
Correct Answer:- Option-C
Question66:-Supercritical co, extraction is particularly well-suited for extracting
compounds with which of the following properties
A:-Low volatility
B:-High solubility in water
C:-Polar nature
D:-Non-polar nature
Correct Answer:- Option-D
Question67:-What does a base-line correction in a DTA to help to eliminate?
A:-Heat capacity effects
B:-Instrumental noise
C:-Chemical reactions
D:-Phase transitions