Carboxylic Acids and amino acids
Carboxylic Acids and amino acids
w.o.f amino acid is requird by the infants nd growing children
a arginine
b tyrosine
c phenylalanine
d a nd b
for complete reduction ov CN we need
a H2
B 2H2
C 4H2
C 6H2
trivial name ov 2-methylpropanoic acid is
a butyric acid
b iso.butyric acid
c acetic acid
d propionic acid
-CN+H2O+H* ----->?
a amide
b crbxylc acid
b both
d none
for the oxidation ov aldhyds into crboxlic acids, the mild oxidizing agent is
a pottasium dichromate
b H2SO4
c ammonical silver nitrate
d both a nd b
aliphatic monocarboxylic acid r called
a faty acid
b amino acid
c both
d none
irritatiön caused by an ant bite is due to
a ethanoic acid
b methanoic acid
c propanoic acid
d butyric acid
CH3CL + KCN ----> CH3-CN --(HCL)--> X
no ov carbn atom in x is ... Than starting alkyle halid
a les
b mor
c equal
non
formula ov palmitic acid is
a C15H31COOH
b C17H35COOH
c C15H30COOH
d C17H36COOH
c-c=c-c=c-c the oxidative cleavage ov dis molecule produce
a 2 ethanoic acid wd 1 oxalic acid
b 2 methanoic acid wd 1 ethanoic acid
c oxalic acid wd 2 methanoic acid
d 2 ethanedioic acid
w.o.f mlecule show oxidative cleavage
a CH3-CH=CH2
B CH3-CH=CH-CH3
C CH3-CH2-CH=CH3
D all
R'-COOR' + NaOh ------>A + HCL --------> X
wt is x?
a aldehyde
b ketone
c alcohol
d crbxylc acid
for cmplete reduction ov crboxylic acid, how many h+ r required
a 2H+
b 4H+
c 6H+
d 8H+
H2CO3 -----> CO2+H2 this proces is
a oxidation proces
b reductin
c simple decmposi in
d elimination
ethyne + H-OH ---(agso4 +h2so4 )---> X -----> rearangment---->Y --oxi--> Ch3cooh
x nd y is?
a x acetaldhyd
b y enol
c x enol
d y acetaldyhd
e both c n d
d both a n b
aldoenol tautomerism is shown by only
a ch3ch2oh
b ch3oh
c ch3ch2oh
d all
cmplete reduction ov CN produce
a immine
b ammine
c both
-CN + 2H2----->
a CH=NH
B CH-NH
C CH triple bnd NH
d all
in amine the hybrdizatin ov N is
a sp3
b sp2
c sp
d none
CH3COOC2H5+NaOH ----->CH3COONa + ?
a C2H5OH
B C3H7OH
C C5H11OH
D C4H9OH
first 4 eliphatic crboxylic acid r very soluble in water due to
a smal R.lenth
b large r.lenth
c h.bonding
d both a nd c
w.o.f compound has higher M.B
a propanoic acim
b butanoic acid
c methanoic acid
d pentanoic acid
ethanoic acid + NaOH ----> Na.acetae + water
dis reaction is an example ov
a electrophilic substitutin reactin
b nucleophilic s.reaction
c salt formatio
d a nd c
e b nd c
-COOH+ 4H ----> -CH2-OH catalyst?
a Na
b riny Ni
c LiALH4
D P
CH3COONa + HCL-----> ?
a new salt + new acid
b new salt + salt
c acid + acid
d none
crboxylic acid + metals ---> ?
a new salt only
b new salt + new acid
c new salt + hydrgn
d none
butyric acid was named aftr the butyrum means
a ant
b vinegar
c butter
d none
in partial reduction ov carboxlic acid the change in hybridization ov c
a sp2 to sp3
b sp2 to sp
c sp3 to sp2
d no change
corboxylic acid gives Nü.S.reaction with
a Na
b Na2CO3
c NH2
D NaOH
if wolf.kishner rductin is started wd carboxylic acid, how many hydrogen atms r required to get the final product
a 4
b 6
c 8
d 2
esterz are formd in the presnces ov .... H2SO4
a concntrate
b dilute
c v.dilute
d v.conc.
requre temp for aldol tautomerizm is
a 90
b 80
c 70
d 100
when corboxylic acid react wid corbonates nd bicrbnates they produce
a önly H2O
b only CO
c carbonic acid
d none
acetic acid + acetic acid ---P2O5--> ?
resulting product cntain no. Ov crbn
a 4
b 6
c 8
d none
-COOH + 4H ----> CH3OH
shows
a oxidatin
b cmplete reductin
c elimination
d none
2CH3COOH + Na2CO3 ----> ?
A new acid + new salt
b new acid + new acid
c new salt +n.sal
d none
during esterification w.o.f proces is observd
a polymerization
b condensation
c elimination ov H2O
d all
during esterification ov crbxylic acid the net deprotination is
a 2
b 4
c 1
d none
during esterification change in hybridizatin ov c is
a sp3 to sp2
b sp2 to sp3
c sp3 to sp
d no change
no. ov enzymes require to prepare ethyl alcohol frm molasses
a 1
b 2
b 3
d 4
enol/aldol tautomerism is shown by
a ethanol
b propanol
c butanol
d none
we oxidized .... to prepard aldehyd is
a rectified spirit
b absolute alcohol
c both
d none
acet amid can be prepared directly frm
a acetic acid
b propionoic acid
c formic acid
d can never prepare directly
acet amid can be prepared directly frm
a acetic acid
b propionoic acid
c formic acid
d can never prepare directly
a food chemist wants to create the odour ov pineapples for a product. an ester with odour has the formula C3H7CO2C245. which pair ov reactant would produce dis ester
a C245CL nd C3H7CO2H
B C3H7OH C3H7COCL
C C2H5OH C3H7CO2H
D C3H7OH C2H5CO2H
w.o.d in equeous solutin ov equal conc. has the lowest pH
a chloroethanoic acid
b ethanoic acid
c ethylamine
d phenol
amino acid that cn't be synthesized de novo by the organism
a esential
b non.esential
c basic
d none
hydrolysis ov CH3CH2CN wil synthesize
a ethanoic acid
b propanoic acid
c methanoic acid
d glutamic acid
w.o.f is stronger acid
a CH3COOH
B CLCH3COOH
C CL2CHCOOH
D CL3CCOOH
w.o.f isomerism is nt shown by crbxylic acid
a chain isomerism
b functinal isomerism
c positin
d optical isomerism
if NaOH is aded to an unknown organic cmpound nd the reactin envolves NH3 then this unknw cmpound is mst likely to b
a an ester
b a crboxylic acid
c an acid amid
d an alkene
the strength ov the organic acid nd chloro substitutd acid is measured by pKa scale such that the smaler value ov pka corespnds to
a strongr acid
b weaker acid
c mild acid
d very weak acid
hydrolysis ov amides undr acidic or alkaline cnditions gives
a same product
b difrnt product
c smtime a nd smtime b
d none
during the 4mation ov an acid amid frm ethanoic acid wt actualy hapns
a displacment ov H frm the acid by cl
b dsplcment ov OH by NH2
c dsplcment ov NH2 BY crbonyl oxygen
dislcment ov H by NH2
salt ov crboxylic acids r prepared undr
a acidic cndition
b alkaline condition
c neutral cnditin
d none
acetic acid can be prepare by ethanol undr
a oxidizing cnditin
b redox
c reducing
d 0.7 pH
alanine is an amino acid bt its nature is
a acidic
b basic
c nutral
d none
during peptide 4mati, cndensation polymerization ov ... functinal group take place
a1
b 2
c 3
d none
the basic chrctr ov nutral amino acid is due to
a amino group
b crbonyl group
c carboxylate group
d none
if ethanoic acid is to be prepared by thy hydrolysis ov alkyl nitriles, w.o.f can be the reagent to be hydrolyzd
a CH3CN
B CH3CH2CN
C HCN
D none
an organic cmpound X is prepard by the oxidatin ot ethanöl. This x reacts wd ethanol to produce ester. Wt x likely to be
a ch3cOOH
B HCOOH
C CH3CH2COOH
D any crboxylic acid
an organic cmpound X is prepard by the oxidatin ot ethanöl. This x reacts wd ethanol to produce ester. Wt x likely to be
a ch3cOOH
B HCOOH
C CH3CH2COOH
D any crboxylic acid
Ethyl acetate + NaOH ------> sodium acetate + y
wt is y?
a methyl alcohol
b ethyl alcohol
c aldehyle
d none
Ethyl acetate + NaOH ------> sodium acetate + y
wt is y?
a methyl alcohol
b ethyl alcohol
c aldehyle
d none
in zwitter ion acidic chrctr is shown by
a NH3*
B COO-
C BOTH
D non
lactic acid is
a propionic acid
b ß. hydroxy propionic acid
c alpha hydroxy propionic acid
d none
galcial acetic acid is produced at
a 18
b 17
c 16
d 20
carboxylic acid --X--> alpha.halocrboxylic acid ---NH3--> C
c is?
A aldehyd
b ketone
c amino achd
d none
a clrles organic cmpound gives brisk efrvescence with a mixture ov NaNO2 nd dil.HCL it could b
a glucose
b glycine
c oxalic acid
d benzoic acid
the amino acid lacking a chiral carbn
a glycine
lysin
c proline
d alanine
CH3COONa is trated wd .... HCL to give carboxylic acid
a concntrated
b dilute
c very dilute
d vry concentratd
after the partial reduction ov -CN the resulting product is
a CH=NH
b CH-NH
C CH triple bnd N
d all
CH3-C (Triple bnd) N is calld
a methyl nitrile
b ethyl nitrile
c ethyl cyanide
d both a nd b
trivial names ov carboxylic acd r derived from .... hving same no ov c as that acid contain
a alkanes
b alkenes
c alkynes
d alkyl halids
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