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Date May 2011 Marks available 1 Reference code 11M.1.sl.TZ1.11
Level SL Paper 1 Time zone TZ1
Command term Deduce Question number 11 Adapted from N/A

Question

How do the bond angles in \({\text{C}}{{\text{H}}_{\text{4}}}\), \({\text{N}}{{\text{H}}_{\text{3}}}\) and \({{\text{H}}_{\text{2}}}{\text{O}}\) compare?

\(\begin{array}{*{20}{l}} {{\text{A.}}}&{{\text{C}}{{\text{H}}_{\text{4}}}}& = &{{\text{N}}{{\text{H}}_{\text{3}}}}& = &{{{\text{H}}_{\text{2}}}{\text{O}}} \\ {{\text{B.}}}&{{\text{C}}{{\text{H}}_{\text{4}}}}& < &{{\text{N}}{{\text{H}}_{\text{3}}}}& < &{{{\text{H}}_{\text{2}}}{\text{O}}} \\ {{\text{C.}}}&{{\text{N}}{{\text{H}}_{\text{3}}}}& < &{{\text{C}}{{\text{H}}_{\text{4}}}}& < &{{{\text{H}}_{\text{2}}}{\text{O}}} \\ {{\text{D.}}}&{{{\text{H}}_{\text{2}}}{\text{O}}}& < &{{\text{N}}{{\text{H}}_{\text{3}}}}& < &{{\text{C}}{{\text{H}}_{\text{4}}}} \end{array}\)

Markscheme

D

Examiners report

[N/A]

Syllabus sections

Core » Topic 4: Chemical bonding and structure » 4.3 Covalent structures
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