Bases

Bases

7th Grade

15 Qs

quiz-placeholder

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Bases

Bases

Assessment

Quiz

Chemistry

7th Grade

Hard

Created by

Hiral Mody

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is true about alkalis?

Alkalis are insoluble in water.

Alkalis do not produce hydroxyl ions in water.

Alkalis are bases that are soluble in water.

All alkalis are acids.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary difference between a base and an alkali?

Alkalis have a higher concentration of hydroxyl ions.

Alkalis are soluble in water, while bases may not be.

Bases are always more basic than alkalis.

Bases are more reactive than alkalis.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of a base but not an alkali?

Sodium hydroxide (NaOH)

Potassium hydroxide (KOH)

Ferric hydroxide (Fe(OH)3)

Calcium hydroxide (Ca(OH)2)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can the strength of an alkali be determined?

By its solubility in water

By the amount of hydroxyl ions it produces in water

By its color in litmus test

By its concentration in water

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A strong alkali dissociates more than what percentage of its molecules in water?

10%

30%

50%

100%

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following describes a dilute alkali?

An alkali with a high amount of alkali dissolved in water.

An alkali with a low amount of alkali dissolved in water.

An alkali that produces a large number of hydroxyl ions.

An alkali that is highly soluble in water.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the concentration of an alkali differ from its strength?

Concentration is related to the solubility of an alkali.

Strength is determined by how much hydroxyl ion is produced.

Concentration affects the dissociation of alkalis.

Strength refers to the amount of alkali dissolved.

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