PHARMACEUTICAL ANALYSIS UNIT-1

Number of moles of a solute per litre of solution is

• Molarity

• Molality

• Normality

• PPM

One of the following is not a property of secondary standard substance

• Secondary standard substance is less pure than primary standard substance

• Secondary standard substance is less stable than primary standard substance

• Secondary standard substance cannot be weighed easily

• secondary standard substance is more pure than primary standard substance

The quantity of NaOH pellets required to prepare 0.05 M, 100 ml standard solution is

• 4 g

• 2 g

• 0.2 g

• 0.02 g

One of the following primary standard substance is not used for the standardization of sodium hydroxide solution

• Oxalic acid

• anhydrous sodium carbonate

• potassium hydrogen phthalate

• standardised HCl solution

In volumetric analysis, the basis of analyte concentration is

• Volume

• Concentration

• Weight

• Both A and B

Volumetric Analysis is a

• Qualitative method

• Quantitative method

• Semi quantitative method

• Both A and B

A person unable to judge the lower meniscus of burette at the endpoint during the titration comes under

• Error of the method

• Instrumental error

• Personal error

• Reagent error

The pH scale in general uses ranges from

• 0 to 1

• -1 to +1

• 0 to 7

• 0 to 14

To deliver a fixed accurate volume of a solution, use a

• pipette

• burette

• dropper

• beaker

The point in an acid-alkali titration at which the reactants just react completely with each other is called the __________ point.

• end point

• equivalence point