Volumetric Analysis

IMPORTANT

Volumetric Analysis: Overview

This topic covers concepts such as Redox Reactions as a Basis for Titrations, Volumetric Analysis, Titration, Titer, Titrant, Equivalence Point, End Point in Titration, Redox Titration, Simple Redox Titration, Redox Back Titration, etc.

Important Questions on Volumetric Analysis

MEDIUM
IMPORTANT

Number of moles of MnO4 is required to oxidise one mole of ferrous oxalate completely in an acidic medium will be:

MEDIUM
IMPORTANT

The reaction of   H 2 S with    H 2 O 2 is an example of _____________ reaction

MEDIUM
IMPORTANT

The reaction of H2S with H2O2 is an example of _____________ reaction.

HARD
IMPORTANT

9.8 g of FeSO4NH42SO4·xH2O was dissolved in 250 mL of its solution. 20 mL of this solution required 20 mL of KMnO4 solution, containing 3.53 g of 90% pure KMnO4 dissolved per litre. Calculate x.

Round-off the answer to the nearest integer.

EASY
IMPORTANT

The volume used for a definite amount of unknown reagent at its equivalence point is known as _____.

EASY
IMPORTANT

Define titre value.

EASY
IMPORTANT

The n factor for dichromate ion in a redox reaction with Mohr's salt in an acidic medium is

HARD
IMPORTANT

I2 obtained from 0.1 mol of CuSO4 required 100 ml of 1 M hypo solution, hence, mole percentage of pure CuSO4 is

MEDIUM
IMPORTANT

What mass of Na2S2O3.5H2O is needed to make 500 cm3 of 0.200 N solution for the reaction :  2S2 O32-+ I2  S4 O62- + 2I-

MEDIUM
IMPORTANT

KMnO4 reacts with KI, in basic medium to form I2 and MnO2 . When 250 ml of  0.1 M KI solution is mixed with 250 ml of 0.02 M  KMnO4 in basic medium, what are the number of moles of I2 formed?

MEDIUM
IMPORTANT

Define "neutralisation".

HARD
IMPORTANT

In a titration experiment, 10 mL of an FeCl2 solution consumed 25 mL of a standard K2Cr2O7 solution to reach the equivalent point. The standard K2Cr2O7 solution is prepared by dissolving 1.225 g of K2Cr2O7 in 250 mL water. The concentration of the FeCl2 solution is closest to

[Given : molecular weight of K2Cr2O7=294 g mol-1]

EASY
IMPORTANT

What do you mean by titrate?

HARD
IMPORTANT

How many ml of 0.125 M Cr3+ must be reacted with 12.00 ml of 0.200 M MnO4- if the redox products are Cr2O72-and Mn2+?

MEDIUM
IMPORTANT

3.5 g of a mixture of NaOH and KOH were dissolved and made up to 250 ml. 25 mL of this solution were completely neutralized by 17 mL of (N/2) HCl solution. The percentage of KOH in mixture is:

MEDIUM
IMPORTANT

In the reaction Ca(OH)2+H3PO4 Ca PO423+H2O, the equivalent mass of H2O is: (M molecular mass)

MEDIUM
IMPORTANT

Which compound decolourises iodine solution?

MEDIUM
IMPORTANT

Consider the redox reaction 2S2O32-+I2S4O62-+2I-:

EASY
IMPORTANT

Which indicator will be most suitable for the titration of acetic acid vs NaOH?

HARD
IMPORTANT

25 ml  of household bleach solution was mixed with 30 ml of  0.50 M KI and 10 ml of  4 N acetic acid. In the titration of the liberated iodine, 48 ml of 0.25 N Na2S2O3 was used to reach the end point. The molarity of the household bleach solution is