Identify the laboratory apparatus used for: intermittent gas generation, keeping substances dry, converting lumps to powder, and channeling liquids into narrow openings.

Here are the laboratory apparatus for each task:

c) The laboratory apparatus for each task is:

i) Intermittent generation of a gas: Kipp's apparatus

ii) Keep substances dry: Desiccator

iii) Convert lumps of a salt into powder: Mortar and pestle

iv) Channeling liquids into a container with a narrow opening: Funnel