Citric acid
Methanoic acid
Sulphuric acid
Acetic acid
Zero
Infinite
Large but finite
Unchanged
Acidic and coordinate
Anhydrous and ionic
Anhydrous and covalent
Basic and covalent
Gold>steel>mercury
Gold> mercury>steel
Steel>gold>mercury
Steel>mercury>gold
Protons and neutrons
Protons and electrons
Neutrons
Protons
A nitrified liquid
An elastic solid
An ionic solid
A crystalline solid
Francium
Lithium
Sodium
Caesium
1
2
3
4
does not suffer any changes in volume while setting
is highly volatile
expands while setting
contracts while setting
does not affect weight but iron is reduced
does not affect weight but iron is oxidized
increases its weight
decreases its weight