Which of the following expressions correctly represents the equivalent conductance at infinite dilution of Al2(SO4)3 ? Given that and are the equivalent conductances at infinite dilution of the respective ions?
Match List I (Substances) with List II (Processes employed in the manufacture of the substances) and select the correct option.
List I (Substance) |
List II (Process) |
||
A. | Sulphuric acid | 1. | Haber's process |
B. | Steel | 2. | Bessemer's process |
C. | Sodium hydroxide | 3. | Leblanc process |
D. | Ammonia | 4. | Contact process |
A | B | C | D |
1 | 4 | 2 | 3 |
A | B | C | D |
1 | 2 | 3 | 4 |
A | B | C | D |
4 | 3 | 2 | 1 |
A | B | C | D |
4 | 2 | 3 | 1 |
Which one of the following complexes is not expected to exhibit isomerism?
[Ni(NH3)4 (H2O)2]2+
[Pt(NH3)2Cl2]
[Ni(NH3)2Cl2]
[Ni(em)3]2+
A 0.1 molal aqueous solution of a weak acid is 30% ionised. If Kf for water is 1.86° C/m, the freezing point of the solution will be
-0.18C
-0.54C
-0.36C
-0.24C
A solid compound XY has NaCl structure. If the radius of the cation is 100 pm, the radius of the anion (Y- ) will be
275.1 pm
322.5 pm
241.5 pm
165.7 pm
C.
241.5 pm
Which of the following complex compounds will exhibit highest paramagnetic behaviour? (At. no. Ti= 22, Cr= 24, Co= 27, Zn= 30)
[Ti(NH3)6]3+
[Cr((NH3)6]3+
[Co(NH3)6]3+
[ZN(NH3)6]2+
The following reactions take place in the blast furnace in the preparation of impure iron. Identify the reaction pertaining to the formation of the slag.