What does soda water contain?
(A). Carbonic acid
(B). Sulphuric acid
(C). Carboxylic acid
(D). Nitrous acid
Answer
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Hint: On opening a bottle of soda, the fizz that comes out of the soda bottle is nothing but carbon dioxide which has been dissolved in the soda and kept under pressure.
Complete step-by-step solution -
Soda water is also known as carbonated water and it contains carbonic acid and thus option A is correct. Now, let us understand how soda water is created.
• Carbon dioxide is infused into the water under very high pressure and when it dissolves in water it forms a very weak acid known as carbonic acid.
• When you open a soda water bottle you will notice an effervescence or a fizz of bubbles. This happens because on opening the bottle of soda water, the pressure decreases rapidly. So, the carbonic acid breaks down into water and carbon dioxide is released.
Note: Do not confuse carbonic acid with carbolic acid. As we have seen that carbonic acid is $ { H }_{ 2 }{ C{ O }_{ 3 } }$ but carbolic acid is chemically known as phenol ${ C }_{ 6 }{ H }_{ 5 }-OH$. Carbolic acid is used as an antiseptic for ages and in many rural parts, it is used in households to stop snake infestation.
Complete step-by-step solution -
Soda water is also known as carbonated water and it contains carbonic acid and thus option A is correct. Now, let us understand how soda water is created.
- • We can get carbonated water in various forms such as sparkling water, seltzer water and of course soda water. All these forms of carbonated water contain a main essential ingredient which is carbon dioxide.
${ H }_{ 2 }{ O }_{ \left( l \right) }+C{ { O }_{ 2 } }_{ \left( g \right) }\overset { High\quad Pressure }{ \longrightarrow } { H }_{ 2 }{ C{ O }_{ 3 } }_{ \left( l \right) }$
${ H }_{ 2 }{ C{ O }_{ 3 } }_{ \left( l \right) }\overset { Pressure\quad Released }{ \longrightarrow } { H }_{ 2 }{ O }_{ \left( l \right) }+C{ { O }_{ 2 } }_{ \left( g \right) }\uparrow$
Note: Do not confuse carbonic acid with carbolic acid. As we have seen that carbonic acid is $ { H }_{ 2 }{ C{ O }_{ 3 } }$ but carbolic acid is chemically known as phenol ${ C }_{ 6 }{ H }_{ 5 }-OH$. Carbolic acid is used as an antiseptic for ages and in many rural parts, it is used in households to stop snake infestation.
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