Which of the following converts acetic acid into acetyl chloride
NaCl
HCl
Cl2/P
PCl3
Which of the following is added to chloroform to slow down its aerial oxidation in presence of light ?
Carbonyl chloride
Ethyl alcohol
Sodium hydroxide
Nitric acid
An organic compound X on treatment with pyridinium chloro chromate in dichloromethane gives compound 'Y". Compound Y reacts with I2 and alkali to form triiodomethane. The compound 'X' is
C2H5OH
CH3CHO
CH3COCH3
CH3COOH
when acetaldehyde is heated with Fehling solution, a red precipitate is formed. Which of the following is that
Cu2O
Cu
CuO
CuSO4
When compound X is oxidised by acidified potassium dichromate, compound Y is formed. Compound Y on reduction with LiAlH4 gives X. X and Y respectively are :
C2H5OH, CH3COOH
CH3COCH3, CH3COOH
C2H5OH, CH3C0CH3
CH3CH0, CH3COCH3
3-hydroxybutanal is formed when (X) reacts with (Y) in dilute (Z) solution. Whatare X, Y and Z
CH3CHO, (CH3)2CO, NaOH
CH3CHO, CH3CHO, NaCI
(CH3)2CO, (CH3)2CO, HCl
CH3CHO, CH3CHO, NaOH
When aniline is treated with CHCI3 and KOH, the product is :
Benzene diazonium chloride
Benzanilide
a Schiff's base
phenyl isocyanide
Hydrolysis of trichloro methane with aqueous KOH gives
methanol
chloral
acetylene
potassium formate
Which of the following reagents can form a hydrazone with alkanone
NH3OHCl
PhNHNH2
NH2NHCONH2
HCN
In which of the following reactions the product is an ether
C6H6 + CH3COCl/anhydrous AIC13
C2H5C1 + aq. KOH
C6H6 + C6H5COCl/anhydrous AICI3
C2H5C1 + C2H5ONa
Dry distillation of calcium acetate and calcium formate forms:
ethanal
ethanol
acetone
The metal used for the de-bromination reaction of 1, 2 dibromoethane
Na
Zn
Mg
Li
Hydrolysis of chloroform with aqueous KOH gives finally
COCl2
CH3NC
HCOOK
CH2Cl(OH)
Which of the following reacts with ethanol to form chloroform
SOCl2
PCl5
CaOCl2/H2O
Which of the following reagents when heated with ethyl chloride, forms ethylene ?
Aqueous KOH
Zn/HCl
Alcoholic KOH
HI
The chemical formula of 'tear gas is :
CO2
Cl2
CCl3NO2
Which of the following compounds when heated with CO at 150"C and 500 atm pressure in presence of BF3 forms ethyl propionate ?
CH3OCH3
C2H5OC2H5
CH3OC2H5
When ethyl alcohol reacts with bromine in the presence of alkali the compound formed
C2H6
C2HsBr
CH3Br
CHBr3
Chloroethane reacts with Y to form NaCl and Z. One mole of Z reacts with two moles of HI to form water and iodo ethane. Which of the following is Y
C2H5ONa
The following reactions is an example of ..... reaction. C2H4Br2→C2H2
addition
dehydrobromination
substitution
dedromination
Ethyl chloride reacts with sodium ethoxide to form a compound A. Which of the following reactions also yields A ?
C2H5C1, KOH (alc. ), Δ
2C2H5OH, conc. H2S04, 1400 C
C2H5C1, Mg (dry ether)
C2H2 dil H2S04, HgSO4
Which of the following compounds is soluble in benzene but almost insoluble in water
CH3CO2H
C6H5NO2
Identify 'acetaldoxime'
CH3 CH==N--NH2
CH3 CH==N--OH
(CH3)2C==N--OH
CH2 ==N--OH
CH3COOH ----LiAlH4---> AA + CH3COOH ---H3O+ -----> B + H2OIn the above reactions 'A' and 'B' respectively are
CH3COOC2H5 ,C2H5OH
CH3CHO , C2H5OH
C2H5OH , CH3CHO
C2H5OH , CH3COOC2H5
Which one of the following compounds forms a quaternary salt on reacting with excess methyl iodide ?
C2H5OCH3
(CH3)2CHOC2H5
C6H5NH2
Which one of the following functional groups undergoes hydrolysis with alkali to yield an acid group
−CN
−CHO
−COCH3
−Br
Absolute alcohol (100% alcohol) is prepared by distilling rectified spirit over:
CaCl2
Mg(OC2H5)2
Which of the following, compounds is the reactant in Rosenmund's reduction
CH3CH2Cl
CH3COCl
Hybridisation of oxygen in diethyl ether is
sp
sp2
sp3
sp3d
Which one of the following compounds liberates CO2 from aqueous NaHCO3
Aluminium chloride
CHCl3
CCl4
CH3Cl