A. activation
B. enameling
C. corrosion
D. coating
Correct Answer: corrosion ✔
Last Updated: February 11, 2021
Related MCQs
- In the production of wrought iron Mg Si and P are removed in the form of__________?
- When the central atom of coordination compound is sp3d2 hybridization the expected geometry will be__________?
- In complex compounds the oxidation number is written in__________?
- The central atom along with ligands is called__________?
- The species which donate two electron pairs in a coordination compound is called__________?
- When a compound of transition element is dissolved in a solution of salt then it produces__________?
- When light is exposed to transition element then electrons jump from lower orbitals to higher orbitals in__________?
- Compounds attracted by applied strong magnetic field are called__________?
- The location of transition elements is in between__________?
- K2 (Cu(CN)4) which one is correct__________?
- Which of the following is typical transition metal ?
- When an active metal like Al comes in contact with less active element like Cu then it produces__________?
- Which is sold as fertilizer __________?
- With impurities like P and S the open hearth furnace is lined with ?
- In pig iron the concentration of C-atom is __________?
- Geometry of the complex compounds usually depends upon __________?
- The compound or complex ion which has a ring in its structure__________?
- Which of the following can form a chealate__________?
- The specie which donates electrons to central metal atom in coordination sphere is called__________?
- Non-stoichiometric compounds of transition elements are called__________?
- The oxidation state of transition elements is usually __________?
- The correct electronic configuration of Cr is__________?
- Pure metal__________?
- The melting points and boiling points upto meddle of 3d- series __________?
- The leements in which d or f orbitals are in the process of completion are__________?
- Group VIB of transition elements contains__________?
- The oxidation number of central metal atom in [Ni(CO)4] is__________?
- Coordination number of the transition element in [Pt Cl NO2 (NH3)4]2- is__________?