Chemistry unit 4 solved MCQs from past papers of the F.sc annual examination. Intermediate Boards previous papers unit-wise MCQs with answer keys.
Chemistry Unit 4 Solved MCQs
Group VA and Group VIA Elements
MULTIPLE CHOICE QUESTIONS (MCQ’s)
(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,
CaCO3
(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