Normal type of MCQ with one correct option
The first ionization energy of coinage family following the order:
Cu > Ag > Au
Cu > Au > Ag
Au > Cu > Ag
Au > Ag > Cu
Normal type of MCQ with one correct option
HgCl2 and SnCl2 cannot coexist in a solution due to:
Common ion effect
Redox change
Solubility product
All of these
Normal type of MCQ with one correct option
The dimerization of NO2 with lowering of temperature is accompanied by:
Darkening in color
Decrease in paramagnetism
Increase in P
None of these
Normal type of MCQ with one correct option
Na2SO4 solution on boiling with flowers of sulphur gives:
NaHSO4
Na2S
Na2SO4
Na2S2O3
In this question, there may be more than one option correct
Zn and Ag can be separated from each other by (A) Distillation (B) Heating with conc. NaOH (C) Treatment with dil. HNO3 (D) Treatment with conc. H2SO4
A,B
B
C,D
A,B & D
Comprehension
The stability of complexes depends upon stability constant. Higher the value of stability constant more will be stability of complex. It can also be determined with the help of dissociation constant. Higher the value of dissociation constant, lesser will be stability. Smaller cation, with higher charge can form more stable complex. Stronger the ligand, more stable will be the complex. Polydenate ligands form more stable complex than unidentate ligand. If multidentate ligand is cyclic, it further increases the stability, it is called macrocyclic effect.
Which of the following is most stable?
[Co(en)3]3+
[Co(NH3)6]3+
[Co(H2O)6]3+
[CoF6]3-
Comprehension
The stability of complexes depends upon stability constant. Higher the value of stability constant more will be stability of complex. It can also be determined with the help of dissociation constant. Higher the value of dissociation constant, lesser will be stability. Smaller cation, with higher charge can form more stable complex. Stronger the ligand, more stable will be the complex. Polydenate ligands form more stable complex than unidentate ligand. If multidentate ligand is cyclic, it further increases the stability, it is called macrocyclic effect.
Which of the following compound and liquid at room temperature?
Cr(CO)6
[Co(CO)4]2
Mn2(CO)10
Ni(CO)4
Comprehension
The stability of complexes depends upon stability constant. Higher the value of stability constant more will be stability of complex. It can also be determined with the help of dissociation constant. Higher the value of dissociation constant, lesser will be stability. Smaller cation, with higher charge can form more stable complex. Stronger the ligand, more stable will be the complex. Polydenate ligands form more stable complex than unidentate ligand. If multidentate ligand is cyclic, it further increases the stability, it is called macrocyclic effect.
Which of the following is called Wilkinson’s catalyst?
[(Ph3P)3Rh]Cl
TiCl4 + (C2H5)3Al
(C2H5)4Pb
[PtCl2(NH3)2]
ASSERTION(REASON
A. [Co(NH3)5Cl]Cl2 reacts with excess of AgNO3 to form 2 moles of AgCl (white ppt) R. [Co(NH3)6Cl3 gives 2 moles of Cl- which react with AgNO3 to forms 2 moles of AgCl.
Both A and R are true and R is correct explanation of A
Both A and R are true and R is not correct explanation of A
A is true, R is false
A is false, R is true
Match matrix type of question:-
Column I
(A) Horn silver (B) Lunar caustic (C) Blue vitriol (D) White vitriol
ColumnII
(P) AgNO3 (Q) ZnSO4. 7H2O (R) AgCl (S) CuSO4.5H2O
(A) ( (Q); (B) ( (P); (C) ( (S); (D) ( (R);
(A) ( (D); (B) ( (P); (C) ( (S); (R) ( (Q);
(A) ( (R); (B) ( (P); (C) ( (S); (D) ( (Q);
(A) ( (R); (B) ( (Q); (C) ( (S); (D) ( (P);