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0620 – Acid-base titrations – Quiz

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Acid-base titrations IGCSE Chemistry quiz: free practice for IGCSE Chemistry. Work through this Acid-base titrations IGCSE Chemistry quiz and get instant feedback on every answer. If you get stuck, review the 12.2 Acid-base titrations — Notes lesson. More practice: IGCSE Chemistry — all units. Syllabus: Cambridge IGCSE Chemistry 0620 syllabus.

1.

In a titration, the indicator shows

the temperature
the mass of salt
the concentration directly
the end-point, when the acid has just neutralised the alkali
2.

Methyl orange is

colourless in acid
blue in acid
pink in alkali
red in acid and yellow in alkali
3.

The alkali is measured into the conical flask with

a volumetric pipette
a beaker
a measuring cylinder
a burette
4.

Titration is repeated until

concordant results are obtained
the flask is full
the indicator runs out
one result is obtained
5.

Titration is used to prepare a soluble salt from

an acid and a soluble base (alkali)
an acid and an insoluble base
two soluble salts
a metal and water
6.

25.0 cm³ of 0.10 mol/dm³ NaOH is neutralised by 12.5 cm³ of HCl. The concentration of the acid is

0.20 mol/dm³
0.050 mol/dm³
0.10 mol/dm³
0.40 mol/dm³
7.

How many moles are in 20.0 cm³ of 0.50 mol/dm³ solution?

10
0.025
0.010
0.10
8.

A white tile is placed under the flask to

keep the flask warm
absorb spills
make the colour change easier to see
speed up the reaction
9.

The burette reading is taken from

the top of the meniscus
the bottom of the meniscus at eye level
above the liquid
any angle
10.

After titration, pure salt crystals are obtained by

filtering only
adding more indicator
evaporating to the crystallisation point, then cooling and filtering
boiling to dryness on a strong flame
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