General Chemistry Questions and Answers Pdf Free Download - 1

Question: 1

_____ can also be used as refrigerants.

Answer:

Propane

Question: 2

______ natural gas can be extracted through drilling wells.

Answer:

Conventional

Question: 3

______ is used as a fuel gas and propellant in aerosol sprays such as deodorants.

Answer:

Butane

Question: 4

_____ coal is black and dull coal.

Answer:

Sub bituminous

Question: 5

Sewage sludge can also be decomposed by microorganisms to produce methane gas along with impurities like carbon dioxide and ______

Answer:

Hydrogen sulphide