Question 19.
Which of the following is acidic in nature?

(a) Lime juice
(b) Human blood
(c) Lime water
(d) Antacid

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Solution

Lime juice is acidic in nature because it contains citric acid. Human blood is slightly basic (i.e., having pH 7.8). Lime water and antacid are basic in nature as they contain hydroxide ${OH}^{-}$ ion. Hence, option (a) is correct.

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Q. Question 19.
Which of the following is acidic in nature?

(a) Lime juice
(b) Human blood
(c) Lime water
(d) Antacid

Question 19

Fill the blanks in the following sentences
(a) Lemon juice and vinegar taste ___ because they contain ___
(b) Turmeric and litmus are ___acid-base indicators.
(c) Phenolphthalein gives___colour with lime water
(d) When an acidic solution is mixed with a basic solution, they___ each other forming a and water.

Question 11

Which of the following is an acid-base indicator?
(a) Vinegar
(b) Lime water
(c) Turmeric
(d) Baking soda

Q. Which of the following are acidic and which are basic?
(a) Lime water (b) Vinegar (c) Toothpaste (d) Stomach juices (e) Lemon juice (f) Baking soda solution (g) Milk of magnesia (h) Ammonia solution (i) Shampoo (j) Aerated drinks

Q. Write the approximate colour of the following samples with the universal indicator:
(a) distilled water
(b) acid rain
(c) soap solution
(d) soil containing slaked lime
(e) gastric juice

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Properties of Acids

Standard IX Chemistry

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Question 19. Which of the following is acidic in nature? (a) Lime juice (b) Human blood (c) Lime water (d) Antacid

Lime juice is acidic in nature because it contains citric acid. Human blood is slightly basic (i.e., having pH 7.8). Lime water and antacid are basic in nature as they contain hydroxide OH− ion. Hence, option (a) is correct.

Question 19.
Which of the following is acidic in nature?

(a) Lime juice
(b) Human blood
(c) Lime water
(d) Antacid

Lime juice is acidic in nature because it contains citric acid. Human blood is slightly basic (i.e., having pH 7.8). Lime water and antacid are basic in nature as they contain hydroxide ${OH}^{-}$ ion. Hence, option (a) is correct.