When lanthanides (Ln) react with carbon at high temperatures (2773K), they form products with a general formula of \( {LnC}_2 \), a carbide.
Thus, the correct answer is (D).
The vapour pressure of H\(_2\)O at 323K is 95 mm of Hg. 176g of sucrose (Molar mass = 342 gmol\(^{-1}\)) is added to 900g of H\(_2\)O at 323K.
The vapour pressure of solution is about
Kepler's second law (law of areas) of planetary motion leads to law of conservation of