Mole & Redox Reaction - Class 12 MCQ

The maximum amount of BaSO₄ precipitated on mixing 20 mL of 0.5 M BaCI₂ with 20 mL of 1 M H₂SO₄    

What is the [OH^-) in the final solution prepared by mixing 20.0 mL of 0.050 M HCI with 30.0 mL of 0.10 M Ba(OH)²?    

Oxidation number of carbon in C₃O₂, Mg₂C₃ are respectively:    

Which is not a redox reaction?

Which is not correct in case of Mohr’s salt?    

In the reaction;   the element oxidised is/are

HCO^-₃ contains carbon in the oxidation state:    

Oxidation number of Fe in Fe_0.94O is:    

The brown ring complex [Fe(H₂O)₅NO₊]SO₄ has oxidation number of Fe:    

The pair of compounds which cannot exist in solution is:    

0.5 mole of H₂SO₄ is mixed with 0.2 mole of Ca(OH)₂ The maximum number of mole of CaSO₄ formed is:    

Volume of 0.1 M NaOH needed  for the neutralisation of 20 mL of 0.05 M oxalic acid is:    

How many garm of KMnO₄ should be taken to make up 250 mL of a solution of such strength that 1 mL is equivalent to 5.0 mg of Fe in FeSO₄?    

25 mL of 0.50 M H₂O₂ solution is added to 50 mL of 0.20 M KMnO₄ in acidic solution. Which of the following statements is true?    

What volume of 0.40 M Na₂S₂O₃ would be required to react with the I₂ liberated by adding excess of KI to 50 mL of 0.20 M CuSO₄ solution?    

The number of mole of potassium salt, i.e, KHC₂O₄.H₂C₂O₄.2H₂O oxidised by one mole of permanganate ion is:    

5 g of a sample of bleaching  powder is treated with excess acetic acid and KI solution. The liberated I₂ required 50 mL of N/10 hypo. The percentage of available chlorine in the sample is:    

4.4 g of CO₂  and  2.24 litre of H₂ at STP are mixed in a container. The total number of molecules present in the container will be:    

20 g of an acid furnishes 0.5 moles of H₃O⁺ ions in its aqueous solution. The value of 1 g eq. of the acid  will be.    

The chloride of a metal contains 71 % chlorine by weight and the vapour density of it is 50. The atomic weight of the metal will be:    

The simplest formula of a compound containing 50% of element X (at. wt. 10) and 50% of element  Y (at. wt. 20) is:    

One g  of a mixture of Na₂CO₃ and NaHCO₃ consumes y equivalent of HCI for complete neutralisation. One g of the mixture is strongly heated, then cooled and the residue treated with HCI how many equivalent of HCI would be required for com-plete neutralisation?    

The pair of species having same percentage of carbon is:    

0.5 g of fuming H₂SO₄ (oleum) is diluted with water. This solution is completely neutralised by 26.7 mL of 0.4 N NaOH. The percentage of free SO₃ in the sample is:    

Equivalent weight of bivalent metal is 32.7. Molecular weight of its chloride is:    

If 20% nitrogen is present in a compound, it’s minimum molecular weight will be.    

0.52 g of a dibasic acid required 100 mL of 0.1 N NaOH for complete neutralisation. The equivalent weight of acid is: