Answer the following questions:

1: Special type of substances used to test whether a substance is acidic/basic is known as

(A) Indicators (B) Acids (C) Bases (D) Salt

2: Which of the following is a strong acid?

(A) Acetic Acid (B) Nitric Acid (C) Lactic Acid (D) Citric Acid

3: The most commonly used natural indicator' Litmus is extracted from

(A) Lichens (B) Turmeric (C) Beet Root (D) China Rose

4: Which of the following colours is given by phenolphthalein in a basic salt solution.

(A) Yellow (B) Pink (C) Orange Red (D) Colourless

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1. Special type of substances used to test whether a substance is acidic/basic are known as- (A) Indicators.

2. (b) Nitric acid- is a strong acid

3. The most commonly used natural indicator' Litmus" is extracted from- (A) Lichens.

4. The colour is given by phenolphthalein in a basic salt solution- (B) Pink

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Updated on: 10-Oct-2022

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