Any process of chemical decay of metals due to the action of surrounding medium is called__________________?

Related Mcqs:

1. Which of following metals can be displaced by all other metals from its solution ?

   A. Ag B. A C. Au D. Cu...

2. If a physical and chemical change takes place at a constant pressure then the heat change during the process is called__________________?

   A. Heat of transition B. Heat of fusion C. Enthalpy change D. All of above...

3. Alkali and alkaline earth metals impart colours when heated over burner. It is due to______________?

   A. Smaller electronegativity of alkali metals B. Smaller ionic radius of these metals C. De-excitation of electrons from higher energy levels to low energy level D. Excitation of electrons from low energy levels to higher energy levels...

4. Second ionization potential of alkali metals are very high due to_______________?

   A. being s-block elements B. inert gas configurations C. ns1 electronic configuration D. being metals...

5. Permanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ?

   A. Zeolites B. Sulphonides C. Lime D. Nitrates Submitted by: Rashid Mehmood...

6. The process of aluminium extraction is called__________________?

   A. Hall process B. Thermite process C. Haber process D. Contact process...

7. Compounds attracted by applied strong magnetic field are called__________________?

   A. diamagnetic B. paramagnetic C. good conductor D. ferromagnetic...

8. The species which donate two electron pairs in a coordination compound is called__________________?

   A. ligand B. mono-dentate ligand C. poly-dentate ligand D. bi-dentate ligand...

9. When electrons collide with heavy metals than ___________ are produced?

   A. Beta-rays B. Alpha-rays C. X-rays D. Gamma-rays...

10. A elements are named as alkali metals because_______________?

    A. Their oxides are basic B. Their oxide and hydroxides are water soluble C. Both A & B D. They are found in earth...