paper-1a – Page 8

M25-CHEM-HL-TZ2-P1A-Q10

What are the hybridizations of the N, C and O atoms in formamide (\( H_2N-CHO \))?

What is the empirical formula of a compound with the following composition by mass? \( C=37.5\% \) \( H=12.5\% \)

What is the charge of the monatomic ion usually formed by the element with the following electron configuration? \( [He]

Which molecule is polar?

What is the retardation factor, \( R_F \), of compound X according to a paper chromatogram where the origin is

What are the electron domain and molecular geometries of \( XeCl_4 \)?

A test tube contains a mixture of liquid hydrocarbons. What is the type of mixture and the best method of

Which property is the same for water containing tritium (\( ^3H \)) and water containing hydrogen (\( ^1H \))?

What is the maximum number of electrons that can occupy the \( n=3 \) main energy level?

What is the group number of the element whose successive ionization energies are shown in a graph where the first