Heating white phosphorus with concentrated \(NaOH\) solution results to the following reaction :
\(P_4(white) + NaOH → PH_3 + NaH_2PO_2 + H_2O\)
Hence, the correct option is (D): \(PH_3\) and \(NaH_2PO_2\)
Let one focus of the hyperbola $ \frac{x^2}{a^2} - \frac{y^2}{b^2} = 1 $ be at $ (\sqrt{10}, 0) $, and the corresponding directrix be $ x = \frac{\sqrt{10}}{2} $. If $ e $ and $ l $ are the eccentricity and the latus rectum respectively, then $ 9(e^2 + l) $ is equal to:
The largest $ n \in \mathbb{N} $ such that $ 3^n $ divides 50! is: