The geometry of H2S and its dipole monet are [ IIT 1999]
57%
a) Angular and non zero
29%
b) Angular and zero
14%
c) linear and non zero
0%
d) Linear and zero
Q.2.
By passing H2S gas in acidified KMnO4 solution, we get [ MP CEE 1998]
29%
a) K2S
29%
b) S
43%
c) K2SO3
0%
d) MnO2
Q.3.
All the elements of oxygen family are [ MP PMT 1998]
29%
a) Non metals
43%
b) Metalloids
0%
c) Radioactive
29%
d) Polymorphic
Q.4.
When sulphur is boiled with Na2SO3 solution, the compound formed is [ Roorkee Screeing test 1992]
29%
a) Sodium sulphide
29%
b) Sodium sulphate
14%
c) Sodium perdulphate
29%
d) Sodium thiosulphate
Q.5.
Identify the incorrect statement with respect to ozone .. [ AIIMS 1994]
50%
a) Ozone is formed in the upper atmosphere by photochemical reaction involving dioxygen
33%
b) Ozone is more reactive than dioxygen
0%
c) Ozone is diamagnetic whereas dioxygen in paramagentic
17%
d) Ozone protects the earth's inhabitants by absorbing gamma-radiations
Q.6.
Which type of bond is there in H2S molecule [ Pb PMT 1998]
14%
a) Ionic
57%
b) Covalent
0%
c) Coordinate
29%
d) All of these
Q.7.
Which of the following behaves as both oxidising and reducing agent? [ AFMC 1995]
57%
a) H2SO4
14%
b) SO2
14%
c) H2S
14%
d) HNO3
Q.8.
Which of the following formula represents the fuming sulphuric acid ... [ CPMT 1992]
43%
a) H2S2O4
29%
b) H2SO5
0%
c) H2S2O7
29%
d) H2S2O8
Q.9.
A substance on treatment with dil. H2SO4 liberated a colourless gas which produces (i) turbidity with baryta water and (ii) turns acidified dichromate solution green. These reactions indicates the presence of ... [ IIT screening
0%
a) CO32-
33%
b) S2-
67%
c) SO32-
0%
d) NO2-
Q.10.
K2CS3 can be called potassium [ CPMT 1994]
33%
a) Sulphocyanide
17%
b) Thiocarbide
33%
c) Thiocarbonate
17%
d) Thiocyanate
Q.11.
Bromine water reacts with SO2 to form? [ AFMCE 1994]
29%
a) H2O + HBr
43%
b) H2SO4 + HBr
29%
c) HBr and S
0%
d) S and H2O
Q.12.
Hydrolysis of one mole of peroxodisulphuric acid produces ... [ IIT 1996]
0%
a) Two moles of sulphuric acid
0%
b) Two moles of peroxomonosulphuric acid
83%
c) One mole of sulphuric acid and one mole of peroxomonosulphuric acid
17%
d) One mole each of sulphuric acid, peroxomonosulphric acid nd hydrogen peroxide
Q.13.
The final acid obtained during the manufacture of H2SO4, by contact process is [ SCRA 1991]
43%
a) H2SO4(conc.)
14%
b) H2SO4(dil.)
14%
c) H2SO4
29%
d) H2S2O7
Q.14.
Acidified solutions of sodium thiosulphate are unstable because in thiosulphate .. [ AIIMS 1994]
0%
a) The two sulphur atoms are at unstable oxidation state of +2
60%
b) The two sulphur atoms are at different oxidation states of +6 and -2
20%
c) The S-S bonds are unstable
20%
d) Thio compounds contains S in oxidation state of zero
Q.15.
Sulphuric acid reacts with Pcl5 to give .. [ Haryana CEET 1996]
17%
a) Thionyl chloride
17%
b) Sulphur monochloride
50%
c) Sulphuryl chloride
17%
d) Sulphur tetrachloride
Q.16.
Which of the following does not show hydrogen bonding? [ AIIMS 1998]
40%
a) H2S
0%
b) H2O
40%
c) N2O
20%
d) Fe3O4
Q.17.
If cold barium nitrate is mixed with H2SO4, which of the following is formed? [ CPMT 1995]
20%
a) HNO2 + BaSO4
40%
b) HNO3 + BaSO4
40%
c) BaSO4 + NO2
0%
d) BaSO4 + N2 O3
Q.18.
In the reaction H2S ⇔ 2H+ + S2- when NH4OH is added then ...... [ Manipal PMT 1994]
0%
a) S2- is precipitated
0%
b) No action takes place
60%
c) Concentration of S2 decreases
40%
d) Concentration of S2 increases
Q.19.
The acid which as a peroxy linkage is .[ CBSE PMT 1994]
20%
a) Sulphurous acid
20%
b) Pyrosulphuric acid
20%
c) Dithionic acid
40%
d) Caro's acid
Q.20.
Sulphur molecule is .. [ AFMC 1991]
40%
a) Diatomic
0%
b) Triatomic
0%
c) Tetra atomic
60%
d) Octatomic
Q.21.
The number of dative bonds in sulphuric acid molecule is [ MP PET 2002]
0%
a) 0
40%
b) 1
40%
c) 2
20%
d) 4
Q.22.
Number of bonds in SO2 are .. [ DEC 2001]
40%
a) Two σ and two π
40%
b) Two σ and one π
20%
c) Two σ and two π and one lone pair
0%
d) None of these
Q.23.
Molecular shapes of SF4, CF4 and Xe4 are [ IIT screening test 2000]
20%
a) same, with 2, 0, 1 lone pair of electrons respectively
40%
b) same, with 0, 1, 2 lone pairs of electrons respectively
20%
c) different, with 0, 1, 2 lone pairs of electrons respectively
20%
d) different with 1, 0, 2 lone pairs of electrons respectively
Q.24.
When potassium ferrocyanide crystals are heated with conc. H2SO4, the gas evolved is ... [ KCET 2000]
40%
a) SO2
0%
b) NH3
20%
c) CO2
40%
d) CO
Q.25.
Amongst H2O, H2O, H2Se and H2Te, the one with the highest boiling point is [ IIT screening test 2000]
60%
a) H2O because of hydrogen bonding
20%
b) H2Te because of higher molecular weight
20%
c) H2S because of hydrogen bonding
0%
d) H2Sc because of lower molecular weight
Q.26.
The compound of sulphur that can be used as refrigerant is .. [ Manipal PMT 2001]
40%
a) SO2
20%
b) SO3
40%
c) S2Cl2
0%
d) H2SO4
Q.27.
Which of the following species is basic and reducing? [ Chd. CET 2002]
40%
a) SO32-
20%
b) SO42-
20%
c) S2O42-
20%
d) HSO4-
Q.28.
When H2S gas is passed through nitric acid, the product is [ Kerala CEE 2002]
40%
a) Rhombic S
0%
b) Prismatic S
40%
c) Amorphous S
20%
d) Monoclinic S
Q.29.
In OF2 molecule, the total number of bond pairs and lone pairs of electrons present respectively are ... [ DPMT 2002]
0%
a) 2, 6
80%
b) 2, 8
0%
c) 2, 10
20%
d) 2, 9
Q.30.
Atomicity of sulphur in rhombic sulphur is [ kerala CEE 2001]
20%
a) 1
0%
b)4
60%
c) 8
20%
d) 12
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