Redox Reaction - 2 - JEE MCQ

4.08 g of a mixture of BaO and unknown carbonate MCO₃ was heated strongly. The residue weighed 3.64 g.  This was dissolved in 100 mL of 1 M HCl.  The excess acid required 16 mL of 2.5 M  NaOH solution for complete neutralization.  Identify the metal M

In order to oxidise a mixture of one mole of each of FeC₂O₄, Fe₂(C₂O₄)₃, FeSO₄ and Fe₂(SO₄)₃ in acidic medium, the number of moles of KMnO₄ required is -

How many grams of copper will be replaced in 2 L of a 1.50-M CuSO4 solution if the latter is made to react with 27.0 g of aluminium ? 

(Cu = 63.5, Al =27.0)

(3CuSO₄ + 2Al ® Al₂(SO₄)₃ + 3Cu)

Given balanced chemical equation for oxidation of phosphorus (III) sulfide by nitric acid. The products include NO and SO2. Find the value of a,b,c,d,e in the following equation.

a P₄S₆ + 44H⁺ + b NO₃^– → cNO + dH₃PO4 + e SO₂ + 4H₂O

Write your answer as (a + b + c + d + e)

One mole of a mixture of CO and CO₂ requires exactly 20 gram of NaOH in solution for complete conversion of all the CO₂ into Na₂CO₃. How many grams more 

of NaOH would it require for conversion into Na₂CO₃ if the mixture (one mole) is completely oxidised to CO₂ ?

A sample of Na₂CO₃. H2O weighing 1.24 g is added to 200 mL of a 0.1-N H₂SO₄ solution. The resulting solution becomes -

How many grams of copper will be replaced in 2 L of a 1.50-M CuSO4 solution if the latter is made to react with 27.0 g of aluminium ? 

(Cu = 63.5, Al =27.0)

(3CuSO₄ + 2Al ® Al₂(SO₄)₃ + 3Cu)