Question

$pH$ of neutral water is considered as $7$. When green house gases dissolve in water, $pH$ will

• A. decreases
• B. increases
• C. constant
• D. cannot be predicted

Answer 1

The correct option is A decreases

Some of the examples of green house gases are as follows:
$C{O}_2,N_{2}O,C{H}_4,etc.$
When dissolved in water, the following reaction take place:
$C{O}_2+H_{2}O\to H_{2}C{O}_3$
Similarly, $N_{2}O$ forms $HN{O}_3$.
As acids are formed, the $pH$ of water decreases.