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ACID& BASE

Authored by SITI MOHAMED

Chemistry

1st Grade

ACID& BASE
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Choose the incorrect statement regarding acetic acid, CH3COOH.

It ionizes completely in aqueous solution.

It changes the litmus paper from blue to red.

It has a pH value closer to 7.

It releases hydrogen ions, H+, when it dissociates.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Select the products obtained when sulphuric acid, H2SO4, reacts with sodium hydroxide, NaOH.

acid and base

Water and oxygen

Carbon dioxide and salt

Salt and water

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In an acid-base titration, an indicator is often added to show the end point during neutralization. Choose an example of an indicator

Palladium

Platinum

Phenol red

Potassium permanganate

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Select the correct physical properties of an acid

They are bitter in taste

Change the colour of the litmus paper from red to blue

Change the colour of the litmus paper from blue to red

Feel slippery or soapy

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the CORRECT statement related to the degree of ionization of an acid or base.

The greater the degree of ionization of the base, the higher the amount of OH ion produced in the solution

The greater the degree of ionization of an acid, the lower the amount of H+ ion produced in the solution

The greater the degree of ionization of the base, the lesser the strength of the base

The greater the degree of ionization of acid, the lesser the strength of acid

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The percentage of dissociation of aqueous sodium hydroxide, NaOH, is less than 100%.

TRUE

FALSE

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phosphoric acid is an example of diprotic acid

TRUE

FALSE

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