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NEET Chemistry MCQ
Oxygen Family Mcq Neet Chemistry
Quiz 2
Solution
Q.1.
Which of the following is oxidised by SO2 [ BHU 1986]
17%
a) Mg
50%
b) K2Cr2O7
0%
c) KMnO4
33%
d) All
Q.2.
Which one is known as oil of vitriol? [ CPMT 1988]
14%
a) H2SO3
29%
b) H2SO4
43%
c) H2S2O7
14%
d) H2S2O8
Q.3.
What is formed when Cl2 is bubbled through molten sulphur .. [ DPMT 1986]
20%
a) SOCl2
20%
b) SCl2
60%
c) S2Cl2
0%
d) SCl4
Q.4.
The acid used in lead storage cells is [ Roorkee Screening test 1989]
14%
a) Phosphoric acid
14%
b) Nitric acid
71%
c) Sulphuric acid
0%
d) Hydrochloric acid
Q.5.
Which of the following has the least bond angle? [ Pb CET 1991]
33%
a) BeF2
33%
b) H2O
17%
c) NH3
17%
d) CH4
Q.6.
When a lead storage battery is discharged.. [ MP PMT 1987]
0%
a) SO2 is evolved
40%
b) PbSO4 is consumed
20%
c) Lead is formed
40%
d) H2SO4 is consumed
Q.7.
S-S bond is not present in ... [ CPMT 1999]
0%
a) S2O42-
0%
b)S2O52-
33%
c) S2O32-
67%
d) S2O72-
Q.8.
Na2S2O3 is prepared by ... { Haryana CEET 2000]
0%
a) Reacting H2S2O3 with NaOH
20%
b) Reducing Na2SO4 with S in alkaline medium
40%
c) Heating NaOH and S
40%
d) Reducing Na2SO4 with S in alkaline medium
Q.9.
Which statement about H2S is false? [ Rookee screening test 2000]
0%
a) It is covalent compound
0%
b) It is a gas with bad smell
67%
c) It is weak base in water
33%
d) It is strong reducing agent than H2O
Q.10.
Which of the following is not tetra hedral? [ MP PMT 2001]
17%
a) SCl4
17%
b) SO42-
33%
c) Ni(CO)4
33%
d) NiCl42-
Q.11.
Hybridization in SO3 is .. [ Haryana CEET 1999]
50%
a) sp2
50%
b) sp3
0%
c) sp2d
0%
d) sp2d2
Q.12.
Which of the following reacts with con. H2SO4 [ EAM CET 1998]
0%
a) Au
40%
b) Ag
20%
c) Pt
40%
d) Pb
Q.13.
Which of the following hydride is most acidic .. [ EAMCET 1998]
60%
a) H2Te
0%
b) H2Se
20%
c) H2O
20%
d) H2S
Q.14.
Which has maximum number of oxo groups? ... [ HAryana CEET 1994]
40%
a) H2SO4
0%
b) H2SO3
20%
c) H3PO3
40%
d) H3PO4
Q.15.
When a colourless gas is passed through bromine water only decoloration takes place. the gas is .. [ DEC 1994]
40%
a) SO2
20%
b) HBr
20%
c) HCl
20%
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]
33%
a) Sulphur is present in the mixture as impurity
50%
b) IV group radicals are precipitated as sulphides
0%
c) Of the oxidation of H2S gas by some acid radicals.
17%
d) III group radicals are precipitated as hydroxides
Q.17.
H2S do not produce metallic sulphite with .. [ AIIMS 1997]
20%
a) CdCl2
0%
b) ZnCl2
40%
c) COCl2
40%
d) CuCl2
Q.18.
The oxidation number of sulphur in S8 in S2F2 and H2S respectively are .. [ IIT 1999]
40%
a) 0, +1 and -2
20%
b) +2, +1, and -2
20%
c) 0, +1 and +2
20%
d) -2, +1 and -2
Q.19.
Oxalic acid when heated with H2SO4 , gives
40%
a) H2O2 and CO2
20%
b) CO and CO2
0%
c) H2O2 and CO
40%
d) CO2 and H2S
Q.20.
Which of the following is called sulphuric anhydride? [ JIPMER 1997]
20%
a) H2S2O7
20%
b) SO3
60%
c) H2S2O3
0%
d) SO2
Q.21.
Na2CO3 reacts with SO2 in alkaline solution to give .. [ CPMT 19996]
20%
a) Na2SO3
0%
b) NaHSO3
80%
c) Na2SO4
0%
d) NaHSO4
Q.22.
Which of the following bonds has the highest energy? [ CBSE PMT 1996]
0%
a) Se - Se
40%
b) Te - Te
40%
c) S - S
20%
d) O - O
Q.23.
Permonosulphuric acid is known as? [ Bihar CEE 1995]
40%
a) Marshall's acid
20%
b) Caro's acid
40%
c) Sulphuric acid
0%
d) None of these
Q.24.
Na2CO3 reacts with SO2 in alkaline solution to give .. [ CPMT 1996]
67%
a) Na2SO3
33%
b) NaHSO3
0%
c) Na2SO4
0%
d) NaHSO4
Q.25.
The crystalline form of sulphur stable at room temperature is [ EAMCET 1994]
60%
a) Rhombic sulphur
20%
b) Monoclinic sulphur
0%
c) Plastic sulphur
20%
d) prismatic sulphur
Q.26.
Oxygen is more electronegative than sulphur. Yet H2S is acidic while H2O is neutral. This is because .. [ DEC 1994]
0%
a) Water is a highly associated compound
40%
b) Molecular mass of H2S is more than that of H2O
20%
c) H2S is gaseous under ordinary condition while H2O is a liquid
40%
d) H - S bond is weaker than H - O
Q.27.
Polyanion formation is maximum in ... [ CBSE PMT 1994]
20%
a) Nitrogen
20%
b) Oxygen
40%
c) Sulphur
20%
d) Boron
Q.28.
SO3 can be obtained by ... [ CBSE PMT 1994]
20%
a) S + H2SO4
20%
b) H2SO4 + PCl5
0%
c) CaSO4 + C
60%
d) Heating ferric sulphate
Q.29.
Sodium thiosulphate is prepared by ... [ IIT 1996]
20%
a) Reducing Na2SO4 solution with H2S
0%
b) Boiling Na2SO3 with alkaline medium
20%
c) Neutralising H2S2O3 solution with NaOH
60%
d) Boiling Na2SO3 with S in an acidic medium
Q.30.
What is the oxidation number of sulphur in Na2S4O6 ? [ AIIMS 1998]
17%
a) 2/3
17%
b) 3/2
33%
c) 3/5
33%
d) 5/2
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