Chemistry Unit 4 Solved MCQs Past Papers Fsc Part 2

Chemistry unit 4 solved MCQs from past papers of the annual examination. Intermediate Boards previous papers unit-wise MCQs with answer keys.

Chemistry Unit 4 Solved MCQs

Group VA and Group VIA Elements
(From Previous Board Papers 2014-2015-2016-2017-2018)

Which halogen will react spontaneously with Au (s) to produce Ar**?
(GRW. GI, 2014)
(A) Br2
(B) F2
(C) 12
D) C12

Which catalyst is used in the contact process? (LIIR. GI, 2014)(BWP. FBD. SGD. GII, 2015)
(SGD. GI, 2016)(LHR. GI, MLN. GII, SGD. GI, SGD. GII, 2017) (LHR. GI, SWL. 2018)
(A) Fe2O3
B) V205
(C) SO3
(D) Ag20

The most electronegative element of group VA is? (RWP. GI, 2014)
(Al N
(B) P
(C) Sb
(D) Bi

Laughing gas is chemically (BWP. RWP. FBD. GII, LIIR. 2014) (LIIR. GI & GII, BWP. 2015)
(A) NO
(B) NO2
© N20
(D) N404

Out of all the elements of group VI-A the highest melting and boiling points is shown by the
element: (SWL. DGK. GI, 2016) (RWP. GII, GRW.GI, 2017) (FBD, SGD, DGK, BWP, 2018)
(A) Te
(B) Se
(C) S

The brown gas formed, when metal reduce IINO3 to: (GRW.2014) (MLN. GII, DGK. GI, 2015)(AJK. DGK. GII, 2016)(SWL. DGK. GII, 2017) (RWP. 2018)
(A) NO
B) NO2
(C) N203
(D) N2O5

The oxidation of NO in air produces: (SWL. 2014) (RWP. SWL. MLN. GI, 2015)
(LHR. GI, 2016) (MLN. GI, RWP. GI, 2017) (GRW, MLN, SGD. GI, 2018)
(A) N203
(B) NO2
(C) N203
(D) N204

Which of the elements gives acidic oxide? (RWP. 2016)
(Α) Ν
(B) As
(C) Sb
(D) Bi

Gold dissolves in “Aqua Regia” due to formation of Halide. Point out correct halide. (MLN. GII, 2016)
(A) AuF3
(B) AuCl3
(C) AuBr3
(D) Aulz

Out of all the elements of group VA, the highest ionization energy is possessed by:- (LHR. GII, MLN. GI, 2016)
(C) Sb
(D) Bi

The maximum number of unpaired electrons is in: (MLN. GII, GRW. 2014)(AJK. GRW.GI & GII, SGD. GI, 2015)
(A) 0;
(B) 0;
(C) 02
(D) O

Which of the following contains 48% oxygen? (BWP. GI, 2014)
(A) SiO2
(В) Васо,
(D) H2O2

Soz is not absorbed in water directly to form H2SO, because:
(A) The reaction does not go to completion
(B) The reaction is quite slow
(C) SO3 is insoluble in water.

The lowest ionization energy is possessed by:
(C) Sb
(A) P
(D) As

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