Choose the correct word from the bracket and fill in the blanks.
A Carbon compound normally known as marsh gas is ________.(Methane/Ethane)
Fill in the blanks with correct words from the brackets: (i) Generally ionic compounds exist in __________ (solid/liquid/gas) state. (ii) Melting and boiling points of covalent compounds are generally ________ (low/high).
A. Fill in the blank spaces by choosing the correct words from the given list.
List: Oxygen, carbonic, sulphur dioxide gas, precipitation, helium
4._____________ gas is used for filling weather observation balloons.
is methane a marsh gas