Three shining iron nails Kept unday the following conditions. a) kept open in attest tube containing А wet cotton.

B )kept in a closed container quick lime

c) About half protein of the nail is kept immrest in sodium chloride solution

questions:-

1) al which of these nails get rusted ? o

2)identify the nail which does not undergo rusting Give reason

3)Suggest a method to prevent corrosion of iron

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

How have the greenhouse gasses increased from the year 2000 to 2018

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.