What volume (in ml) at `STP` of `SO_(2)` gas is oxidized by `100 ml` of `0.1 (M) H_(2)Cr_(2)O_(7)` in acid solution?

The concentration of Fe^(2+) (10ml) required to oxidize 15ml of 0.1M K_2Cr_2O_7 solution is:

Calculate the number of millimoles and milliequivalents of Cr_(2)O_(7)^(2-) ions in acid medium when 100 mL of 0.01 M Cr_(2)O_(7)^(2-) is reduced to Cr^(3+) " by " Fe^(2+) .

The volume of O_(2) (measured at STP) liberated by 1 mL 1M H_(2)O_(2) is

Find the volume of ammonia gas (at STP) which on passing through 30 mL 1.0 (N) H_(2)SO_(4) solution, acidity of solution decrease to 0.2 (N).

Strength or concentration of H_(2)O_(2) solution is expressed in the following ways: In terms of volume of O_(2) gas: The volume (in mL) of O_(2) gas produced at STP on heating one volume (or 1 mL) of H_(2)O_(2) solution is known as the concentration of H_(2)O_(2) solution. The commercial samples are marked as "10 volume, 20 volume 30 volume.etc.. 34g of H_(2)O_(2) is present in 1120 m. of solution is called

(a). IF both (A) and (R) are correct and (R) is the correct explanation of (A). (b). If both (A) and (R) are correct but (R) is not the correct explanation of (A). (c). If (A) is correct, but (R) is incorrect. (d). If (A) is incorrect, but (R) is correct. ltbr. (e) if both (A) and (R) are incorrect. Q. Assertion (A): If x " mL of " 0.2 M H_(2)SO_(4) solution requires 10 " mL of " 0.24 M KOH solution then x " mL of " 0.1 M H_(2)SO_(3) would require 20 " mL of " 0.01 M acidified K_(2)Cr_(2)O_(7) solution. Reason (R): H_(2)SO_(3) is dibasic acid.

(a). IF both (A) and (R) are correct and (R) is the correct explanation of (A). (b). If both (A) and (R) are correct but (R) is not the correct explanation of (A). (c). If (A) is correct, but (R) is incorrect. (d). If (A) is incorrect, but (R) is correct. (e) if both (A) and (R) are incorrect. Assertion (A): If x " mL of " 0.2 M H_(2)SO_(3) solution requires 10 " mL of " 0.24 M KOH solution then x " mL of " 0.1 M H_(2)SO_(3) would require 20 " mL of " 0.01 M acidified K_(2)Cr_(2)O_(7) solution. Reason (R): H_(2)SO_(3) is dibasic acid.

Calculate the volume strength of H_(2)O_(2) solution if 50 mL of H_(2)O_(2) solution is diluted with 50 mL of H_(2)O_(2) . 20 mL of this diluted solution required 40 mL of M//60 K_(2)Cr_(2)O_(7) solution in presence of H_(2)O_(2) for complete reaction.