Chemistry - Organic Chemistry Based on Functional Group - II
Exam Duration: 45 Mins Total Questions : 30
Chlorine gas is dried over
- (a)
CaO
- (b)
NaOH
- (c)
KOH
- (d)
Conc. H2SO4
Which of the following is the best oxidising agent?
- (a)
Cl-
- (b)
Cl2
- (c)
I-1
- (d)
Br-
Dry ice is consists of
- (a)
H2O
- (b)
CO2
- (c)
SO2
- (d)
NH3
By passing carbon monoxide over solid caustic soda heated to 2000C and 8 atmospheric pressure, we get
- (a)
sodium bicarbonate
- (b)
sodium carbonate
- (c)
sodium formate
- (d)
sodium oxlate
Which glass has the highest percentage of lead?
- (a)
soda glass
- (b)
flint glass
- (c)
jena glass
- (d)
pyrex glass
silicon is an important constituent of
- (a)
rocks
- (b)
alloys
- (c)
animal
- (d)
vegetables
Bleaching action of sulphur dioxide is due to
- (a)
oxidation
- (b)
production of sulphur
- (c)
reduction
- (d)
sulphonation
Which is the strongest oxidising agent?
- (a)
HOCl
- (b)
HClO2
- (c)
HClO3
- (d)
HClO4
Which one of the following is known to exist?
- (a)
BrF7
- (b)
CIF5
- (c)
IF7
- (d)
CIF7
The higher oxidising power of fluorine than chlorine may bebest attributerd to its
- (a)
electron affinity
- (b)
electronegativity
- (c)
low dissociation energy
- (d)
high ionisation energy
The reaction of sodium thiosulphate with iodine gives
- (a)
sodium sulphide
- (b)
sodium sulphite
- (c)
sodium sulphate
- (d)
sodium tetrathionate
Chlorine does not oxidise
- (a)
FeCl2
- (b)
I
- (c)
Br
- (d)
F
Which one of the following has the highest bioling point?
- (a)
Helium
- (b)
Krypton
- (c)
Xenon
- (d)
Neon
The outer electron configuration of a noble gas is 5s2 5p6. The noble gas with this outer electron configuratin is
- (a)
Neon
- (b)
Argon
- (c)
Krypton
- (d)
Xenon
Helium was first detected spectroscopically by
- (a)
Cavendish
- (b)
Lockyer
- (c)
Ramsay
- (d)
Rutherford
Most of the compounds of noble gases known are those of xenon because it has
- (a)
the largest atomic size among all the noble gases known
- (b)
the lowest ionisation energy among the non radioactive noble gases
- (c)
the outer configuration 5s25p6
- (d)
the highest electronegativity
Helium was discovered by
- (a)
Crooks
- (b)
Dorn
- (c)
Franklaud & Llockyer
- (d)
Rutherford
Which of the following acids is the weakest?
- (a)
HCIO
- (b)
HBr
- (c)
HCIO3
- (d)
HCI
Which one of the following statement is wrong about BF3?
- (a)
It is a Lewis acid
- (b)
It has a planar geometry
- (c)
It forms adduct with NH3
- (d)
It is volatile at room temperature
Which one of the following will displace Br2 from an aqueous solution containing bromidde ions?
- (a)
I2
- (b)
Cl2
- (c)
Cl-
- (d)
I3
Which one of the following is a false statement about boric acid (H2BO3)?
- (a)
It is prepared by acidifying an aqeous solution of borax
- (b)
It has layerd structure in which planer BO3 units are joined by hydrogen bonds
- (c)
It is a strong tri basic acid
- (d)
It does not act as proton donor but acts as Lewis acid by accepting hydroxy1 ion
A solution of patassium bromide is treated with each of the following. Which one would liberate bromine?
- (a)
HI
- (b)
SO2
- (c)
Cl2
- (d)
I2
Phosphide ion has the electronic structure similar to that of
- (a)
nitride ion
- (b)
fluoride ion
- (c)
sodium ion
- (d)
chloride ion
The reaction of C6H5CH2Br with aqueous sodium hydroxide follows
- (a)
SN1 mechanism
- (b)
SN2 mechanism
- (c)
any of the above depending upon the temperature of reaction
- (d)
Saytzeff's rule
When H2 is added to two isomeric alkenes A and B having molecular formula C5H9CI, A gives optically inactive compound while B gives a chiral compound. The two isomers are
- (a)
A is 3-chloro-pentene and B is 4-chloro- 2-pentene
- (b)
A is 4-chloro-1-pentene and B is 2-chloro-2-pentene
- (c)
A is 1-chloro-1pentene and B is 1-chloro-2-pentene
- (d)
A is 1-chloro-1-pentene and B is 5-chloro-1-pentene
The major organic compound formed by the reaction of 1,1-trichloroethane with silver powder is
- (a)
acetylene
- (b)
ethene
- (c)
2-butyne
- (d)
2-butene
HBr reacts with \({ CH }_{ 2 }=CH-{ OCH }_{ 3 }\) under anhydrous conditions at room temperature of given
- (a)
\({ CH }_{ 3 }CHO\quad and\quad { CH }_{ 3 }Br\)
- (b)
\({ BrCH }_{ 2 }CHO\quad and\quad { CH }_{ 3 }OH\)
- (c)
\({ BrCH }_{ 2 }-{ CH }_{ 2 }-{ OCH }_{ 3 }\)
- (d)
\({ H }_{ 3 }C-CHBr-{ OCH }_{ 3 }\)