Q.1
Which of the following is oxidised by SO2 [ BHU 1986]
  • a) Mg
  • b) K2Cr2O7
  • c) KMnO4
  • d) All
Q.2
Which one is known as oil of vitriol? [ CPMT 1988]
  • a) H2SO3
  • b) H2SO4
  • c) H2S2O7
  • d) H2S2O8
Q.3
What is formed when Cl2 is bubbled through molten sulphur .. [ DPMT 1986]
  • a) SOCl2
  • b) SCl2
  • c) S2Cl2
  • d) SCl4
Q.4
The acid used in lead storage cells is [ Roorkee Screening test 1989]
  • a) Phosphoric acid
  • b) Nitric acid
  • c) Sulphuric acid
  • d) Hydrochloric acid
Q.5
Which of the following has the least bond angle? [ Pb CET 1991]
  • a) BeF2
  • b) H2O
  • c) NH3
  • d) CH4
Q.6
When a lead storage battery is discharged.. [ MP PMT 1987]
  • a) SO2 is evolved
  • b) PbSO4 is consumed
  • c) Lead is formed
  • d) H2SO4 is consumed
Q.7
S-S bond is not present in ... [ CPMT 1999]
  • a) S2O42-
  • b)S2O52-
  • c) S2O32-
  • d) S2O72-
Q.8
Na2S2O3 is prepared by ... { Haryana CEET 2000]
  • a) Reacting H2S2O3 with NaOH
  • b) Reducing Na2SO4 with S in alkaline medium
  • c) Heating NaOH and S
  • d) Reducing Na2SO4 with S in alkaline medium
Q.9
Which statement about H2S is false? [ Rookee screening test 2000]
  • a) It is covalent compound
  • b) It is a gas with bad smell
  • c) It is weak base in water
  • d) It is strong reducing agent than H2O
Q.10
Which of the following is not tetra hedral? [ MP PMT 2001]
  • a) SCl4
  • b) SO42-
  • c) Ni(CO)4
  • d) NiCl42-
Q.11
Hybridization in SO3 is .. [ Haryana CEET 1999]
  • a) sp2
  • b) sp3
  • c) sp2d
  • d) sp2d2
Q.12
Which of the following reacts with con. H2SO4 [ EAM CET 1998]
  • a) Au
  • b) Ag
  • c) Pt
  • d) Pb
Q.13
Which of the following hydride is most acidic .. [ EAMCET 1998]
  • a) H2Te
  • b) H2Se
  • c) H2O
  • d) H2S
Q.14
Which has maximum number of oxo groups? ... [ HAryana CEET 1994]
  • a) H2SO4
  • b) H2SO3
  • c) H3PO3
  • d) H3PO4
Q.15
When a colourless gas is passed through bromine water only decoloration takes place. the gas is .. [ DEC 1994]
  • a) SO2
  • b) HBr
  • c) HCl
  • d) H2S
Q.16
Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because [ AFMC 1994]
  • a) Sulphur is present in the mixture as impurity
  • b) IV group radicals are precipitated as sulphides
  • c) Of the oxidation of H2S gas by some acid radicals.
  • d) III group radicals are precipitated as hydroxides
Q.17
H2S do not produce metallic sulphite with .. [ AIIMS 1997]
  • a) CdCl2
  • b) ZnCl2
  • c) COCl2
  • d) CuCl2
Q.18
The oxidation number of sulphur in S8 in S2F2 and H2S respectively are .. [ IIT 1999]
  • a) 0, +1 and -2
  • b) +2, +1, and -2
  • c) 0, +1 and +2
  • d) -2, +1 and -2
Q.19
Oxalic acid when heated with H2SO4 , gives
  • a) H2O2 and CO2
  • b) CO and CO2
  • c) H2O2 and CO
  • d) CO2 and H2S
Q.20
Which of the following is called sulphuric anhydride? [ JIPMER 1997]
  • a) H2S2O7
  • b) SO3
  • c) H2S2O3
  • d) SO2
Q.21
Na2CO3 reacts with SO2 in alkaline solution to give .. [ CPMT 19996]
  • a) Na2SO3
  • b) NaHSO3
  • c) Na2SO4
  • d) NaHSO4
Q.22
Which of the following bonds has the highest energy? [ CBSE PMT 1996]
  • a) Se - Se
  • b) Te - Te
  • c) S - S
  • d) O - O
Q.23
Permonosulphuric acid is known as? [ Bihar CEE 1995]
  • a) Marshall's acid
  • b) Caro's acid
  • c) Sulphuric acid
  • d) None of these
Q.24
Na2CO3 reacts with SO2 in alkaline solution to give .. [ CPMT 1996]
  • a) Na2SO3
  • b) NaHSO3
  • c) Na2SO4
  • d) NaHSO4
Q.25
The crystalline form of sulphur stable at room temperature is [ EAMCET 1994]
  • a) Rhombic sulphur
  • b) Monoclinic sulphur
  • c) Plastic sulphur
  • d) prismatic sulphur
Q.26
Oxygen is more electronegative than sulphur. Yet H2S is acidic while H2O is neutral. This is because .. [ DEC 1994]
  • a) Water is a highly associated compound
  • b) Molecular mass of H2S is more than that of H2O
  • c) H2S is gaseous under ordinary condition while H2O is a liquid
  • d) H - S bond is weaker than H - O
Q.27
Polyanion formation is maximum in ... [ CBSE PMT 1994]
  • a) Nitrogen
  • b) Oxygen
  • c) Sulphur
  • d) Boron
Q.28
SO3 can be obtained by ... [ CBSE PMT 1994]
  • a) S + H2SO4
  • b) H2SO4 + PCl5
  • c) CaSO4 + C
  • d) Heating ferric sulphate
Q.29
Sodium thiosulphate is prepared by ... [ IIT 1996]
  • a) Reducing Na2SO4 solution with H2S
  • b) Boiling Na2SO3 with alkaline medium
  • c) Neutralising H2S2O3 solution with NaOH
  • d) Boiling Na2SO3 with S in an acidic medium
Q.30
What is the oxidation number of sulphur in Na2S4O6 ? [ AIIMS 1998]
  • a) 2/3
  • b) 3/2
  • c) 3/5
  • d) 5/2
0 h : 0 m : 1 s