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