CBSE 12th Standard Chemistry Subject The p-Block Elements HOT Questions MCQ Questions With Solution 2021
By QB365 on 28 May, 2021
QB365 Provides the HOT Question Papers for Class 12 Chemistry, and also provide the detail solution for each and every HOT Questions. HOT Questions will help to get more idea about question pattern in every exams and also will help to get more marks in Exams
QB365 - Question Bank Software
CBSE 12th Standard Chemistry Subject The p-Block Elements HOT Questions MCQ Questions With Solution 2021
12th Standard CBSE
-
Reg.No. :
Chemistry
-
Cold ferrous sulphate solution on absorption of NO develops brown colour due to the formation of
(a)paramagnetic [Fe(H2O)5(NO)] SO4
(b)diamagnetic [Fe(H2O)5(N3)] SO4
(c)paramagnetic [Fe(H2O)5(NO3)] (SO4)2
(d)diamagnetic [Fe(H2O)4(SO4)] NO3
-
Of the following acids, the one which has the capability to form complex compound and also possesses oxidising and reducing properties is
(a)HNO3
(b)HNO2
(c)HCOOH
(d)HCN
-
[Fe(H2O)5NO]2+ is a complex formed during the brown ring test for NO\(\overset{-}{3}\) ion. In this complex,
(a)there are three upaired electrons so that its magnetic moment is 3.87 B.M.
(b)No transfers its electron to Fe2+ so that iron exists as Fe (I) and No as NO+
(c)the colour is because of charge transfer
(d)all of the above statements are correct
-
Atoms in P4 molecule of white phosphorus are arranged regularly in the following way
(a)at the corners of a cube
(b)at the corners of an octahedron
(c)at the corners of a tetrahedron
(d)at the centre and corners of a tetrahedron
-
The percentage of \(\pi\)-character in the orbitals forming P-P bonds in P4 is
(a)25
(b)33
(c)50
(d)75
*****************************************
CBSE 12th Standard Chemistry Subject The p-Block Elements HOT Questions MCQ Questions With Solution 2021 Answer Keys
-
(a)
paramagnetic [Fe(H2O)5(NO)] SO4
-
(b)
HNO2
-
(d)
all of the above statements are correct
-
(c)
at the corners of a tetrahedron
-
(d)
75
