" 22) How is the presence of "SO_(2)" detected? "

Presence of water can be detected by

In an organic compound , the presence of halogen is detected by

In an organic compound , the presence of halogen is detected by

Give a test to detect the presence of SO2 gas?

SO_(3)^(2) and SO_(4)^(2) both give while ppt.with BaCl_(2) solution how is SO_(3)^(2-) detected in presence of SO_(4)^(2) ?

SO_(3)^(2) and SO_(4)^(2) both give while ppt.with BaCl_(2) solution how is SO_(3)^(2-) detected in presence of SO_(4)^(2) ?

How recombinant DNA technology is useful is detecting the presence of mutated genes?