A. corrode slowly
B. corrode rapidly
C. does not corrode easily
D. none of these
Related Mcqs:
- Which one of following is not a property of pure quartz ?
A. Coloured solid
B. Brittle
C. Hard
D. All of above - The PH of pure water at 25°C, kw=1×10-4____________?
A. 0
B. 7
C. 14
D. None of aboveSubmitted by: Muhammad Ali Kunbhar
- Which one is a pure carbon?
A. Coal Tar
B. Coal gas
C. Coke
D. None of TheseSubmitted by: Aamir khan Hullio
- Coordination number of the transition element in [Pt Cl NO2 (NH3)4]2- is____________________?
A. 2
B. 6
C. 4
D. 8 - The oxidation state of transition elements is usually _______________________?
A. variable
B. constant
C. single
D. infinite - Non-stoichiometric compounds of transition elements are called___________________?
A. hydrates
B. hydrides
C. binary compounds
D. interstitial compounds - In pig iron the concentration of C-atom is ___________________?
A. 0.12 — 0.25%
B. 2.5 — 4.5%
C. 2.0 — 4.0%
D. 0.25 — 2.5% - Compounds attracted by applied strong magnetic field are called__________________?
A. diamagnetic
B. paramagnetic
C. good conductor
D. ferromagnetic - When light is exposed to transition element then electrons jump from lower orbitals to higher orbitals in______________________?
A. orbitals of f-subshell
B. orbitals of d-subshell
C. orbitals of p-subshell
D. both A & B - In the production of wrought iron Mg Si and P are removed in the form of___________________?
A. oxides
B. silicates
C. slag
D. carbonates
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