HARD
JEE Main/Advance
IMPORTANT
Earn 100

A steel sample is to be analysed for and simultaneously. By suitable treatment the is oxidized to and the to sample of steel is used to produce of a solution containing and portion of this solution is added to solution and by proper adjustment of the acidity, the chromium is completely precipitated as is obtained. A second portion of this solution requires exactly of standard solution for its titration (in acid solution). Calculate the of and of in the steel sample.

Important Questions on Redox Reactions
HARD
JEE Main/Advance
IMPORTANT

HARD
JEE Main/Advance
IMPORTANT

EASY
JEE Main/Advance
IMPORTANT
Write balanced net ionic equation for the following reactions in acidic solution.
(a)
(b)
(c)

MEDIUM
JEE Main/Advance
IMPORTANT
Write balanced net ionic equations for the following reactions in basic solution :
(a)
(b)
(c)

MEDIUM
JEE Main/Advance
IMPORTANT
In a quantitative determination of iron in an ore, an analyst converted , of the ore into its ferrous. This required of solution of for titration.
(i) How many milliequivalents of does of solution represent?
(ii) How many equivalents of iron were present in the sample of the ore taken for analysis?
(iii) How many grams of iron were present in the sample?
(iv) What is the percentage of iron in the ore?
(v) What is the molarity of solution used?
(vi) How many moles of were used for titration ?

EASY
JEE Main/Advance
IMPORTANT

EASY
JEE Main/Advance
IMPORTANT

EASY
JEE Main/Advance
IMPORTANT
