\(H_2S_2O_3\)
\(H_2S_2O_6\)
\(H_2S_2O_7\)
\(H_2S_2O_8\)
In \(H_2S_2O_3\), sulphur exhibits two different oxidation states +6 and –2.

So, the correct answer is (A) : \(H_2S_2O_3\)
Which one of the following graphs accurately represents the plot of partial pressure of CS₂ vs its mole fraction in a mixture of acetone and CS₂ at constant temperature?

Let \( \alpha = \dfrac{-1 + i\sqrt{3}}{2} \) and \( \beta = \dfrac{-1 - i\sqrt{3}}{2} \), where \( i = \sqrt{-1} \). If
\[ (7 - 7\alpha + 9\beta)^{20} + (9 + 7\alpha - 7\beta)^{20} + (-7 + 9\alpha + 7\beta)^{20} + (14 + 7\alpha + 7\beta)^{20} = m^{10}, \] then the value of \( m \) is ___________.
Sulphur is a non-metal that is tasteless, abundant, and odorless. Sulphur is a yellow crystalline compound, in its natural form. In surroundings, it can be observed as a loose element or in the form of sulfide and sulfate minerals. Sulphur is commonly known for its foul odor, which is sometimes compared to rotten eggs, that odor is actually caused by hydrogen sulfide (H2S).