• According to Werner's theory, the number of groups bonded to the central metal atom/ion in a coordination complex represent.

A polymer sample contains 3 molecules of molar mass $10^3, 3$ molecules of molar mass 500 and 4 molecules of molar mass 200 . What is it's weight average molecular mass?

$$ \text { The Haworth projection shown below represents } $$

Which one of the following will improve the lathering property of soap?