CAIE IGCSE Chemistry 11.1.1 And Interpret the Displayed Formula of Questions

Work through real CAIE IGCSE Chemistry questions to draw every atom and bond, count molecular formulae and check structural valencies.

Exam points

draw all atoms and every bond while maintaining the normal valency of carbon, hydrogen and heteroatoms
count each atom in a displayed structure to deduce the molecular formula accurately
use formula and functional-group evidence to complete a valid displayed structural arrangement

[Maximum number: 1]

The structure of glycine is shown.

Which row is correct?

formula of glycine

number of different

elements in glycine

$\mathrm{CH}_{5} \mathrm{O}_{2} \mathrm{~N}$

$\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{O}_{2} \mathrm{~N}$

$\mathrm{H}_{2} \mathrm{NCHCOOH}$

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