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Standard X
Chemistry
Question

Sodium hydrogen carbonate when added to acetic acid evolves a gas. Which of the following statements are true about the gas evolved?
(i) It turns lime water milky.
(ii) It extinguishes a burning splinter.
(iii) It dissolves in a solution of sodium hydroxide.
(iv) It has a pungent odour.
  1. (i) and (ii)
  2. (i), (ii) and (iii)
  3. (ii), (iii) and (iv)
  4. (i) and (iv)

A
(i) and (ii)
B
(i), (ii) and (iii)
C
(i) and (iv)
D
(ii), (iii) and (iv)
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Solution
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The gas that evolved is carbon dioxide gas which has the property of turning lime water milky. It can extinguish the burning candle or splinter and it gets dissolved in sodium hydroxide solution to form sodium carbonate but this gas is odourless in nature. So, the last statement is false regarding the evolved gas.

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Similar Questions
Q1
Sodium hydrogen carbonate when added to acetic acid evolves a gas. Which of the following statements are true about the gas evolved?
(i) It turns lime water milky.
(ii) It extinguishes a burning splinter.
(iii) It dissolves in a solution of sodium hydroxide.
(iv) It has a pungent odour.
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Q2

Question 10.
Sodium hydrogen carbonate, when added to acetic acid, evolves a gas. Which of the following statements are true about the gas evolved?
(i) It turns lime water milky
(ii) It extinguishes a burning splinter
(iii) It dissolves in a solution of sodium hydroxide
(iv) It has a pungent odour

(a) (i) and (ii)
(b) (i), (ii) and (iii)
(c) (ii), (iii) and (iv)
(d) (i) and (iv)

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Q3

A student takes 2 mL acetic acid in a dry test tube and adds a pinch of sodium hydrogen carbonate to it. He makes the following observations

I. A colorless and odourless gas evolves with a brisk effervescence.

II. The gas turns lime water milky when passed through it.

III. The gas burns with an explosion when a burning splinter is brought near it.

The gas extinguishes the burning splinter that is brought near it.

The correct observations are


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Q4

Question 18

Explain the following:

(a) Lime water turns milky on passing carbon dioxide gas into it.
(b) Bubbles are produced when acetic acid is added to a solution of sodium hydrogen carbonate.

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Q5
When sodium hydrogen carbonate powder is added to acetic acid, a gas evolves. Which one of the following statements is not true for this gas?
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