Page 23 - Fpgee Question And Answer 2024 Edition

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-R
K 2 Cr 2 O 7 -X (Halogens)

In the choice “B”, 2,4,6 trinitrophenol has three -
NO 2 groups (electron hungry groups), which will try
Secondary (2 ) Ketone to withdraw electrons from the benzene ring. This
o
will make the benzene ring more unsaturated. To
o
The oxidation of primary alcohol (1 ) generally fulfill the unsaturation created by nitro groups, the
o
produces an aldehyde. The tertiary alcohol (3 ) benzene ring will pull the electron from the
cannot be oxidized. available -OH group. This will make oxygen to
withdraw electron from Hydrogen rather than
726. (c) We know that low PKa is interpreted as an sharing with it to form an octet. The resultant effect
acidic compound. We have to find the compound makes Hydrogen of –OH group easily available in
with the most acidity among given choices. To find solution ; hence makes solution acidic.
out the acidity, we need to find compound that can
easily give away its hydrogen. In the given choices, 728.(a) The risk of the teratogenesis is highest
Aniline is the compound which has an aromatic during the first trimester of pregnancy. Below is the
benzene ring (unsaturated). The nitrogen of the list of drugs that should be carefully prescribed or
amino group will donate its electron to the completely avoided by pregnant women.
unsaturated benzene ring; this will allow the
hydrogen ion to leave the benzene ring easily. Lithium Warfarin
Finasteride Vitamin A
The other choices such as Methylamine (CH 3NH 2) Isotretinoin Misoprostol
and ethylamine (CH 3CH 2NH 2) have methyl and ethyl ACE inhibitor Alcohol
(saturated, not electron hungry) respectively and Metronidazole Tetracycline
will not make hydrogen easily available in the Valproic acid Phenytoin
solution.
729.(d) Category X denotes the highest risk to the
727.(b) To solve this question, the same rule will developing fetus.
apply. Below is the chart of the electron withdrawal
groups and electron donor groups. 730.(b) SMZ/TMP is the antibiotic of choice for the
treatment of UTI in pregnant women in the first
Electron withdrawal groups: trimester, due to fewer side effects as compared to
the other choices.
-NO 2
-CN 731.(c) Benztropine.
-SO 3H
-CHO 732.(b) Essential fatty acids, or EFAs, are fatty acids
-COR that humans and other animals must ingest because
-COOH the body requires them for good health but cannot
-COOR synthesize them.

Electron donor groups: Only two fatty acids are known to be essential for
humans: alpha-linolenic acid (an omega-3 fatty acid)
-NH 2 and linoleic acid (an omega-6 fatty acid). Some
-OR other fatty acids are sometimes classified as
-OH "conditionally essential," meaning that they can
-OCOR become essential under some developmental or

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