Fsc Part 2 Chemistry Online Test-Chapter 4 Group VA and VIA Elements | ilmkidunya

Chemistry Fsc Part 2 Chapter 4 Online Test

Sr. #	Questions	Answers Choice
1	Which of the following specie has the maximum number of unpaired electrons.	O2 O2+ O2- O2<sup>-2</sup>
2	Which catalyst is used in contact process.	Fe2O3 V2O5 SO3 Ag2O
3	SO2 is not absorbed in water directly to form H2SO4 because.	The reaction does not go to completion The reaction is quite slow The reaction is exothermic SO3 is insoluble in water
4	Out of the elements of group VIA the highest melting and boiling points is shown by the element.	Te Se S Po
5	The brown gas formed when metal reduces HNO3 is	N2O5 N2O3 NO2 NO
6	In group VA elements the most electronegative elements is.	Sb N P As
7	Out of the elements of group VA, the highest energy is possessed by	N P Sb Bi
8	Out of all the elements of groups VI-A the highest melting and boiling points is shown by the element	Te Se S Po
9	The brown gas formed when metal reduces HNO₃	N<sub>2</sub>O<sub>5</sub> N<sub>2</sub>O<sub>3</sub> NO<sub>2</sub> NO
10	Oxidation of NO in air produces	N<sub>2</sub>O N<sub>2</sub>O<sub>3</sub> N<sub>2</sub>O<sub>4</sub> N<sub>2</sub>O<sub>5</sub>
11	In group V-A elements the most electronegative elements is	Sb N P As
12	Out of all the elements of Group V-A the highest ionization energy is possessed by	N P Sb Bi
13	Which catalyst is used in contact process	Fe<sub>2</sub>O<sub>3</sub> V<sub>2</sub>O<sub>5</sub> SO<sub>3</sub> Ag<sub>2</sub>O
14	Maximum number of unpaired electrons is in	O<sub>2</sub> O<sub>2</sub><sup>+</sup> O<sub>2</sub><sup>-</sup> O<sub>2</sub><sup>2-</sup>
15	What is %age of calcium phosphate in bone ash	20 40 80 60
16	Gold dissolves in "Aqua Regia" due to formation of Halide. Point out correct halide	AuF<sub>3</sub> AuCl<sub>3</sub> AuBr<sub>3</sub> AuI<sub>3</sub>
17	Which metal is redered passive by HNO₃due to formation of a film of metal oxide over the metal	Pt Sn CO Mn

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