d-Block Elements (Hard)
Description: GAte | |
Number of Questions: 15 | |
Created by: Vijay Puri | |
Tags: GAte Transition Elements Important Compounds of Transition Elements General Characteristics of 3d Elements |
Match the following:
Group - I (element) | Group - II (electronic configuration) |
P. Cu | 1. 4d7, 5s1 |
Q. Mo | 2. 4d8, 5s1 |
R. Ru | 3. 3d10, 4s1 |
S. Rh | 4. 4d5, 5s1 |
Which of the following pairs of ‘element/ion - its electronic configuration’ is not correct?
Which metal ion represents zero value of CFSE if it associated with weak field ligand?
Which of the following statements are incorrect?
- In floatation process, ZnO and SO3 are formed from sulphide ores.
- To prevent corrosion of Zn, Fe is used as a coating material.
- Cd metal is used in nuclear reactors as neutron excitation material.
- Mercury is used extensively in the production of sodium hydroxide and chlorine gas commercially.
Which of the following pairs of ‘transition metal and its ore’ is incorrectly matched?
In the extraction of iron, which of the following constitutes the ‘charge’ in the blast furnace besides coke and oxide ore?
Which of the following statements is/are not correct?
P. Manganese metal is used as scavenger in making steel. Q. All known isotopes of technetium are radioactive, except 98Tc. R. Rhenium is used in the making of electric furnace windings and spectrophotometer filaments.
Match the lists:
List - A | List - B | List - C |
P. Cu | 1. Smaltite | i. sulphide |
Q. Zn | 2. Chalcocite | ii. arsenide |
R. Fe | 3. Franklinite | iii. carbonate |
S. Co | 4. Siderite | iv. oxide |
The ores of titanium is/are
- ilmenite
- hausmannite
- linnaeite
Which of the following d-electronic configurations in an octahedral complex will give the maximum CFSE?
The clusters of H3Ru3NiCp(CO)9 are used to catalyse
Which of the following statements is/are incorrect?
P. CuCl2 is used as a catalyst in the manufacture of ammonia by Haber process.
Q. CuCl exhibits blue colour in aqueous solution.
R. Fractional crystallisation of metals to get maximum pure form is known as zone refining.
Which of the following statements is/are incorrect?
P. The central metal atom shows +4 oxidation state in potassium chromate and potassium dichromate. Q. Limonite and willemenite are ores of zinc. R. Zinc oxide is called as white lead with the formula (PbCO3)2•Pb(OH)2 and is used as a whitening material.
Match the following:
Group - I | Group - II |
A. Wilkinson’s catalyst | 1. Pt/PtO |
B. Adams catalyst | 2. [PH3P]3.Rh.Cl |
C. Lazier catalyst | 3. TiCl4/Al(C2H5)3 |
D. Ziegler-Natta catalyst | 4. 2CuO.Cr2O3 |
Match the lists:
List - A | List - B |
A. Hf | 1. Polymerisation |
B. AlEt3/TiCl4 | 2. Making of lead-free petrol |
C. VC2 | 3. Neutron moderator |
D. Pt-Re alloys | 4. Ethyne production |