PPSC Chemistry Part III Inorganic Chemistry Online Test With Answers

PPSC Chemistry Part III Inorganic Chemistry Online Test

Sr. # Questions Answers Choice
1 An equal volume mixture explodes with violence H2 & N2O H2 & NO H2 & N2O4 H2 & N2O3
2 A colorless gas with pleasant odour and sweet taste. N2O N2O3 NO N2O4
3 Among oxides of nitrogen all are gases except. N2O5 N2O NO N2O3
4 Artificial nitrogen fixation may occur by the formation of. Nitric acid Ammonia Nitrides Any of above
5 Molecule is a diatomic Nitrogen Phosphorous Arsenic Antimony
6 The common oxidation state of elements of group V A is. -3 +3 +5 Any above
7 The electronegativity of phosphorus is. 3.0 2.1 2.0 1.9
8 Which element are non metals. N & P Sb & Bi As & Sb N & Bi
9 Group VA of the periodic table consist of elements. 3 4 5 6
10 Which of the following compounds combines with hemoglobin. CO2 CO NO N2
11 Dry ice is Solid CO Solid CO2 Solid NH3 Solid SO2
12 Blue color of glass of due to the presence of . Cobalt (II) Chromium (III) Iron (III) copper (II)
13
Red colour of glass of due to the presence of
 Cu2O CoO MnO2 CdS
14 The green colour of glass is due to the presence of. Chromium (III) Cobalt (II) Mn (IV) Iron(III)
15 The three dimensional silicate anion (Si2O52-)n is present in Beryl Silica Asbestos Clays
16 The silicate chains are present in Silica asbestos Beryl Clays
17 Lead pencil contain Lead Lead sulphide a mixture of lead and silica graphite
18 The different layers in graphite are held together by Ionic bonding Metallic bonding Covalent bonding Van der Waals forces
19 Diamond and carbon are the _________ forms of carbon Isotropic amorphous Allotropic Isomeric
20 Which property is not exhibited by carbon in its compounds. Forming bounds to other carbon atoms Formation multiple forms Exhibiting allotropic forms Forming compounds with coordination number beyond four
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