Q.Collect information about various apparatus/instruments used in chemistry laboratory and make presentation of it in science exhibition.

Suggested structure for the presentation. Group the apparatus named in this chapter's own description of semi-micro qualitative analysis (section 2.2.1) by the role each plays in an analysis, and add the two key quantitative-measurement instruments named later in the chapter (section 2.2.2), since both qualitative and quantitative analytical work were introduced together.

Heating/reaction apparatus: test tubes (small-scale reactions/heating), beakers (mixing, dissolving, general containers), evaporating dish (evaporating a solvent to leave a solid residue), crucible (strong heating/ignition of a sample), watch glass (covering a beaker or holding a small solid sample), wire gauze (spreading heat evenly under a container on a tripod), water bath (gentle, controlled heating without a naked flame), burner and blow pipe (sources/directors of flame for heating and flame tests).

Handling/separation apparatus: a pair of tongs (safely holding hot crucibles/containers), spot plate (small-scale spot tests for colour reactions), centrifuge (spinning a mixture to separate a precipitate from a solution faster than gravity settling alone).

Quantitative-measurement apparatus: a weighing (analytical) balance (measuring the mass of a solid sample or precipitate for gravimetric analysis), and a burette (measuring the volume of a reagent solution added in a titration for volumetric analysis). …

Draw directly on the chapter's own apparatus list (section 2.2.1) plus the balance/burette mentioned in section 2.2.2, organised by functional role, since this is an open-ended co …

• Listing apparatus with no explanation of its use, which does not fulfil the 'make a presentation' instruction. …