Quiz 1

What part of the atom or molecule does infrared radiation affect

• the nucleus
• the electrons
• the  bonds
• the charge

A molecule has a broadband at 3200cm^-1 and sharp band at 1711cm^-1. the molecule is most likely an

• amide
• ester
• alkanol
• carboxylic acid

The mobile phase in paper chromatography is typically a

• plasma
• solid
• gas
• liquid

Indicator are chemical species which are 

• pH sensative and exhibit different colour in acidic and basic medium

• Reagent scavenger that destroy the acidic/basic reagent

• complex in nature and prohibited the acid-base reaction

• All the above

The common ion which are already present in solution

• Increases the solubility of new chemical

• Decreases the solubility of new chemical

• Does not effect the solubility of new chemical

• All the above