Chemistry Final test (True/False)

Oxygen gas is collected by the upward displacement of water.

• True
• False

Soluble acidic oxides dissolve in water to form acidic solution.

• True
• False

Rhombic sulphur and monoclinic sulphur are allotropes of sulphur.

• True
• False

Fullerenes have high melting and boiling points than diamond and graphite.

• True
• False

Carbon can be used as a reducing agent.

• True
• False

Graphite crucibles are used as containers for melting metals at low temperature.

• True
• False

Bromine is a solid at room temperature.

• True
• False

Reactivity of halogens occurs in the order of F2

• True
• False

Mineral acids are weak acids and organic acids are strong acids.

• True
• False

Acid reacts with non-metals to form a salt and hydrogen.

• True
• False