Assertion: In the titration of `Na_(2)CO_(3)` with `HCl` using methyl orange indicator, the volume of acid required is twice that of the acid required using phenolphthalein as indicaton.
Reason: Two moles of `HCl` are required for the complete neutralisation of one mole of `Na_(2)CO_(3)`.

(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): In the titration of Na_(2)CO_(3) with HCl using methyl orange indicator the volume required at the equivalence point is twice that of the acid required using phenolphthalein indicator. Reason (R): 2 " mol of "HCl are required for complete neutralization of one mole of Na_(2)CO_(3) .

(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): In the titration of Na_(2)CO_(3) with HCl using methyl orange indicator the volume required at the equivalence point is twice that of the acid requried using phenolphthalein indicator. Reason (R): 2 " mol of "HCl are requried for complete neutralisation of one mole of Na_(2)CO_(3) .

(a). If both (A) and (R) are correct and (R) is the appropriate explanation for (A). (b). If both (A) and (R) are correct and (R) is 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. Q. Assertion (A): in the titration of Na_(2)CO_(3) with HCl using methyl orange indicator, the volume required at the equivalence point is twice that of the acid requried using phenolphthalein indicator. Reason (R): Two moles of HCl is requried for the complete neutralisation of 1 " mol of " Na_(2)O_(3)

This question has Statement I and Statement II. Of the four choices given after the Statements, choose the one that best describes the two Statements. Statement - I : In the titrations of Na_2CO_3 with HCI using methyl orange indicator, the volume required at the equivalence point is twice that of acid required using phenolphthalein indicator. Statement - II: Two moles of HCI are required for complete neutralization of one mole of Na_2CO_3 .

Indicator used in the titration of Na_2 CO_3 and HCl is

A sample of NaHCO_(3) + Na_(2)CO_(3) required 20 ml of HCl using phenolphthalein as indicator and 35ml more required if methyl orange is used as indicator . Then molar ratio of NaHCO_(3) to Na_(2)CO_(3) is

A sample of NaHCO_(3) + Na_(2)CO_(3) required 20 ml of HCl using phenolphthalein as indicator and 35ml more required if methyl orange is used as indicator . Then molar ratio of NaHCO_(3) to Na_(2)CO_(3) is

In the mixture of NaHCO_(3) and Na_(2)CO_(3) , the volume of a given HCl required is x mL with phenolphthalein indicator and further y mL required with methyl orange indicator. Hence volume of HCl for complete reaction NaHCO_(3) is

The volume of 0.1 M HCl required in mL to neutralise 20 mL of a solution containing 0.106 g of Na_(2)CO_(3) is