state gov Rajasthan Patwari Mock Test Series 2025 General Science Chemistry

Chemical formula for sulfurous acid is ________.

1
\({H_2}S{O_4}\)
2
\({H_2}S{O_3}\)
3
\({H_3}S{O_3}\)
4
\({H_3}S{O_4}\)
5
Question Not Attempted
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