Stainless steel is non-corrosive. This character is more prominent in

The metal that does not give the borax bead test is

Which from the following alloys is used in gas turbine engines?

Which of the following statements regarding copper salts is not true?

Describe the preparation of potassium permanganate. How does the acidified permanganate solution react with $(i)$ iron $(II)$ ions,$(ii)$ $SO_2$,and $(iii)$ oxalic acid? Write the ionic equations for the reactions.

The highest stable $Mn$ fluoride is $MnF_4$,whereas the highest $Mn$ oxide is $Mn_2O_7$. This is due to: