Explain the following:

(a) Lime water turns milky on passing carbon dioxide gas into it.
Explain the following:

(b) Bubbles are produced when acetic acid is added to a solution of sodium hydrogen carbonate.

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Solution

(a) Through passing carbon dioxide gas into lime water turns milky due to formation of white coloured insoluble calcium carbonate.
$C O_{2} + Lime water [C a (O H)_{2}]$
$\to Calcium Carbonate (C a C O_{3})$ [White] + water $(H_{2} O)$

(b) Bubbles are produced due to the formation of carbon dioxide when acetic acid is added to a solution of sodium hydrogen carbonate.

Vinegar (Acetic acid) + Baking soda (Sodium hydrogencarbonate) $\to C O_{2}$ + other substances

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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.

Q. 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.

Q. Explain why?

Lime water turns milky, when carbon dioxide gas is passed into it.

Q. Why lime water turns milky due to formation of white precipitate of calcium carbonate , when carbon dioxide gas is passed through lime water ?

Lime water turns milky when carbon dioxide gas is passed through it due to the formation of _________.

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Standard VII Biology

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

Explain the following:

(a) Lime water turns milky on passing carbon dioxide gas into it.
Explain the following:

(b) Bubbles are produced when acetic acid is added to a solution of sodium hydrogen carbonate.