What is cryoscopic constant of water if $$5 \mathrm{~g}$$ of glucose in $$100 \mathrm{~g}$$ of water has depression in freezing point $$2.15 \mathrm{~K}$$ ? (Molar mass of glucose $$=180$$ )

Which of the following pairs of alkenes is an example of position isomers?

Which of the following polymers is used in the preparation of cinema films?

In carbinol system isobutyl alcohol is named as