100 " mL of " 0.2 M Kal`(OH)_(2)CO_(3)` solution is completely neutralised by a standard solution of `(M)/(4)H_(2)C_(2)O_(4)`. Which of the following is/are wrong?

10ml of 1 M H_(2)SO_(4) will completely neutralise

The volume of 0.1M H_(2)SO_(4) solution required to neutralise 50ml of 0.2M NaOH solution is -

The volume in mL of 0.1 M solutions of NaOH required to completely neutralise 100 mL of 0.3 M solution of H_(3)PO_(3) is

How many moles of H_2O form when 25.0 mL of 0.10 M HNO_3 solution is completely neutralised by NaOH?

A solution of 0.2 g of a compound containing Cu^(2+) "and" C_(2)O_(4)^(2-) ions on titration with 0.02 M KMnO_(4) in presence of H_(2)SO_(4) consumes 22.6 mL of the oxidant. The resultant solution is neutralized with Na_(2)CO_(3) acidified with dil. acetic acid and treated with excess KI. The liberated iodine requires 11.3 mL of 0.5 M Na_(2)S_(2)O_(3) solution for complete reduction. Find out the mole ratio of Cu^(2+) "to" C_(2)O_(4)^(2-) in the compound. Write down the balanced redox reactions involved in the above titrations.