The correct option is(A): 1.0 × 10–15
\(Bi_2S3⇋2Bi^3+2s+3s^2-3s\)
Ksp = (2s)2(3s)3 = 108s5
108s5 = 108 × 10–75
s = 1.0 × 10–15 mol/L




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 ___________.
To neutralize stomach acids antacids type of drug are used. This tablet contain substances such as calcium, sodium bicarbonate, and magnesium, which act as base in the stomach.