Class 9 Chemistry · Chapter 7 · Test 2

Arrhenius Acids and Bases

25 MCQs covering the Arrhenius definition of acids and bases strong and weak acids and bases ionization in water hydronium ions hydroxide ions and related examples.

MCQs

25 questions · 20 min · 25 marks

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Sample questions

The first 5 of 25. Try each one, then tap to see the answer.

Question 1
According to the Arrhenius concept what does an acid produce in water?
- AOH− ions
- BH+ ions
- CNa+ ions
- DCl− ions
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Answer: B
An Arrhenius acid produces H+ ions in aqueous solution.
Question 2
According to the Arrhenius concept what does a base produce in water?
- AH+ ions
- BCl− ions
- COH− ions
- DNO3− ions
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Answer: C
An Arrhenius base produces OH− ions in aqueous solution.
Question 3
Which of the following is an Arrhenius acid?
- ANaOH
- BKOH
- CHCl
- DCaO
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Answer: C
HCl produces H+ ions when dissolved in water.
Question 4
Which of the following is an Arrhenius base?
- AHCl
- BHNO3
- CH2SO4
- DNaOH
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Answer: D
NaOH dissociates in water to produce OH− ions.
Question 5
Which ion combines with water to form hydronium ions?
- AOH−
- BH+
- CNa+
- DCl−
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Answer: B
Hydrogen ions associate with water molecules to form H3O+ ions.

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