Acid, Base and Salts MCQ question and answer with solution

1

What is the difference in an acid or an alkali in an aqueous solution?

A) Alkalis form OH^- ions in water B) Alkalis form H⁺ ions in water C) Alkalis form H₂O⁺ ions in water D) Acids form OH^- ions in water

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Answer & Solution

Answer: Option A

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2

Match List-I with List-II and select the correct answer:

List-I (Acid)	List-II (Source)
a. Lactic acid	1. Tamarind
b. Tartaric acid	2. Orange
c. Oxalic acid	3. Tomato
d. Citric acid	4. Sour curd

A) a-2, b-4, c-3, d-1 B) a-2, b-3, c-4, d-1 C) a-4, b-3, c-1, d-2 D) a-4, b-1, c-3, d-2

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Answer & Solution

Answer: Option D

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3

What is the color of alkali?

A) Blue with phenolphthalein and yellow with methyl orange B) Pink with phenolphthalein and yellow with methyl orange C) Yellow with phenolphthalein and pink with methyl orange D) Yellow with phenolphthalein and blue with methyl orange

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Answer & Solution

Answer: Option B

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4

An unknown gas quickly dissolves in water. This gaseous aqueous solution turns red litmus into the blue. This gas produces hydrogen chloride with a white flame. This unknown gas is

A) Sulphur dioxide B) Nitric hydroxide C) Ammonia D) Carbon monoxide

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Answer & Solution

Answer: Option C

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5

What is the name of the acid in grapes?

A) Lactic acid B) Formic acid C) Acetic acid D) Tartaric acid

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Answer & Solution

Answer: Option D

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6

When eno salt is poured into the water, bubbles forms, which is due to

A) O₂ gas B) CO₂ gas C) CO gas D) H₂ gas

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Answer & Solution

Answer: Option B

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7

The pH scale measures the hydrogen ion concentration in a solution. What does P mean in this?

A) Power B) Potenz, which means power in German C) Potential, which means comfort in German D) Potency, which means power in German

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Answer & Solution

Answer: Option B

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8

What is the pH value of lemon Juice approximately?

A) 9 B) 2 C) 12 D) 7

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Answer & Solution

Answer: Option B

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9

Which one of the following is viscous?

A) Alcohol B) Water C) Honey D) Gasoline

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Answer & Solution

Answer: Option C

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10

The pH value of water is

A) 4 B) 7 C) 12 D) 18

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Answer & Solution

Answer: Option B

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Acid, Base and Salts MCQ question and answer with solution | Chemistry Gk MCQs