Quiz 2

Polyvalent metal ions like Calcium and magnesium are assayed by

• Precipitation titration

• Complexometric titration

• Non aqueous titration

• Redox titration

Example of a primary standard

• Perchloric acid

• Oxalic acid

• Hydrochloric acid

• Sulphuric acid

Mordant black is a

• Hydrogen ion indicator

• Neutralization indicator

• Metal ion indicator

• Redox indicator

Example of an external indicator

• Starch

• Starch mucilage

• Xylenol orange

• Starch iodide paper

Sodium thiosulphate is standardised by using primary standard

• Potassium bromate

• Arsenic trioxide

• Sodium carbonate

• Potassium bromide

Titrant in Iodimetry

• Sodium thiosulphate

• Starch

• Iodine

• Ammonium thiocyanate

Primary standard for standardization of sulphuric acid

• Sodium hydroxide

• Sodium carbonate

• Sodium thiosulphate

• Sodium chloride

Number of moles of solute contained in 1000 grams is called

• Normality

• Molality

• Molariry

• Formality

Sodium chloride is assayed by

• Acid base titration

• Non aqueous titration

• Complexometric titration

• Argentimetric titration

Titrant in diazotization titration

• Sodium carbonate

• Sodium hydroxide

• Sodium nitrate

• Sodium nitrite