Q.1.
Which of the following is used to absorb suphur dioxide. [ EAMCET 1980]
-
29%
a) Conc. H2SO4
-
42%
b) KOH solution
-
10%
c) water
-
19%
d) Anhydrous CaCl2
Q.2.
Which of the following oxoacid of sulphur has – O – O – linkage? [NEET 2020]
-
44%
a) H2S2O8, peroxodisulphuric acid
-
40%
b) H2S2O7, pyrosulphuric acid
-
4%
c) H2SO3, sulphurous acid
-
12%
d) H2SO4, sulphuric acid
Q.3.
Which is the correct thermal stability order for H2E (E = O, S, Se, Te and Po)? [NEET 2019]
-
26%
a) H2S < H2O < H2Se < H2Te < H2Po
-
26%
b) H2O < H2S < H2Se < H2Te < H2Po
-
37%
c) H2Po < H2Te < H2Se < H2S < H2O
-
11%
d) H2Se < H2Te < H2Po < H2O < H2S
Q.4.
Which of the following product is formed by the reaction of sulphur dioxide with chlorine in presence of sunlight: [2003]
-
14%
a) SO2Cl
-
57%
b) SO2Cl2
-
14%
c) SOCl2
-
14%
d) SO3Cl
Q.5.
Which of the following gas mixture is used by the divers inside the sea? [2004]
-
32%
a) O2 + He
-
26%
b) O2+Xe
-
32%
c) O2 + Ar
-
11%
d) O2 + N2
Q.6.
Which of the following is not correct? [AFMC 2008]
-
40%
a) 3O2 ↔ 2O3; ∆H = -284.5 kJ In presence of silent electric discharge
-
20%
b)Ozone undergoes addition reaction with unsaturated carbon compounds.
-
20%
c) Sodium thiosulphate reacts with I2 to form sodium tetrathionate and sodium iodide
-
20%
d) Ozone oxidises lead sulphide to lead sulphate.
Explanation
Q.7.
The number of S-O-S bonds in cyclic SO3 is [2009]
-
20%
a) 1
-
25%
b) 2
-
40%
c) 3
-
15%
d) none of above
Q.8.
The correct formula of salt formed by the neutralization hypophosphorous acid with NaOH is … ( GUJCET 2007)
-
14%
a) Na3PO2
-
43%
b) Na3PO3
-
43%
c) NaH2PO2
-
0%
d) Na2HPO4
Q.9.
How many atoms are packed differently in cyclic form in an allotrope of monoclinic sulphur? ( GUJCET 2008)
-
13%
a) 2
-
13%
b) 10
-
60%
c) 8
-
13%
d) 6
Q.10.
Which of the following non-metal possesses the atomicity half that of sulphur? [ J and K CET 2002]
-
8%
a) Nitrogen
-
46%
b) Oxygen
-
46%
c) Phosphorus
-
0%
d) Arsenic
Q.11.
Bond angle is minimum for
-
25%
a) H2O
-
8%
b) H2S
-
33%
c) H2Se
-
33%
d) H2Te
Q.12.
There is no S - S bond in ... [ IIT 1991]
-
33%
a) S2O42-
-
0%
b) S2O52-
-
33%
c) S2O32-
-
33%
d) S2O72-
Q.13.
About H2SO4 which is incorrect [ CPMT 1986]
-
30%
a) Reducing agent
-
20%
b) Dehydrating agent
-
30%
c) Sulphonating agent
-
20%
d) Highly viscous
Q.14.
A gas which can not be collected over water is ... [ IIT 1985]
-
36%
a) N2
-
14%
b) O2
-
29%
c) SO2
-
21%
d) PH3
Q.15.
Number of atoms isn one molecule of sulphur is ... [ EAMCET 1988]
-
45%
a) 8
-
45%
b) 4
-
0%
c) 3
-
9%
d) None
Q.16.
When conc. H2SO4 comes in contact with sugar, it becomes black due to... [ CPMT 1989]
-
25%
a) Hydrolysis
-
0%
b) Hydration
-
25%
c) Decolourisation
-
50%
d) Dehydration
Q.17.
Which liberates SO2 with dil H2SO4 [CPMT 1991]
-
27%
a) Na2SO42-
-
27%
b) NaHSO4
-
36%
c) Na2SO3
-
9%
d) Na2S
Q.18.
Which oxides of nitrogen is used as a catalyst in the lead chamber process for manufacture of H2SO4
-
45%
a) NO
-
18%
b) NO2
-
18%
c) N2O3
-
18%
d) N2O5
Q.19.
The oxidation states of the most electronegative element in the products of the reaction of BaO2 with dil. H2SO4 are [ IIT 1991]
-
22%
a) 0 and 1
-
44%
b) -1 and -2
-
22%
c) -2 and 0
-
11%
d) -2 and +1
Q.20.
Bleaching action of SO2 is due to .. [ CPMT 1986]
-
50%
a) Reduction
-
10%
b) Oxidation
-
0%
c) Hydrolysis
-
40%
d) Its acidic nature
Q.21.
The hybridization of sulphure in SO2 is [ IIT 1998]
-
0%
a) sp
-
20%
b) sp3
-
50%
c) sp2
-
30%
d) dsp2
Q.22.
Hypo is used in photography to ... [ Pb CET 1989]
-
0%
a) reduce AgBr grains to metallic silver
-
0%
b) Convert metallic silver to silver salt
-
75%
c) Remove undecomposed silver bromide as a soluble complex
-
25%
d) Remove reduced silver
Q.23.
When SO2 is passed through acidified K2Cr2O7 solution
-
0%
a) the solution turn blue
-
0%
b) the solution is decolourised
-
11%
c) SOSO2 is reduced
-
89%
d) Green Cr2(SO4)3 is formed
Q.24.
The chemical reaction between Na2S2O3 and I2 in aqueous medium produces.
-
11%
a) Na2S + NaI + H2S
-
56%
b) Na2SO4 + NaI + H2O
-
33%
c) Na2SO2 + NaI + H2O
-
0%
d) Na2S4O6 + NaI + H2O
Q.25.
Which shows maximum catenation property .. [ AIIMS 1983]
-
17%
a) S
-
8%
b) Se
-
25%
c) Te
-
50%
d) O
Q.26.
The products of the chemical reaction between Na2S2O3, Cl2 and H2O are .. [ EAMCET 1989]
-
0%
a) S + HCl + Na2S
-
88%
b) S + HCl + Na2SO4
-
0%
c) S + HCl + Na2SO3
-
12%
d) S+ NaClO3 + H2O
Q.27.
Which of the following has the highest dipole moment? [ Pb CET 1991]
-
0%
a) CO2
-
0%
b) F2
-
56%
c) H2O
-
44%
d) BeF2
Q.28.
Oleum is ... [ CBSE PMT 1991]
-
30%
a) Castor oil
-
10%
b) Oil of vitriol
-
50%
c) Fuming H2SO4
-
10%
d) None of them
Q.29.
As a fixing agent in photography, sodium thiosulphate is used for .. [ Pb.CET 1989]
-
44%
a) Dissolving out unreacted sliver bromide
-
22%
b) Converting silver halides to metallic silver
-
11%
c) Reducing solubility of AgBr
-
22%
d) Preventing overdeveloping and fogging
Q.30.
Iodine oxidises the S2O32- ion to .... [AFMC 1990]
-
40%
a) SO32-
-
10%
b) SO42-
-
50%
c) S4O62-
-
0%
d) S2-