Q.1: The property of metals by which they can be beaten into thin sheets is called ___________.
Q.2: Metals are _________ conductors of heat and electricity.
Q.3: _________ is a soft metal and can be cut with a knife.
Q.4: __________ is the only metal which is found in a liquid state at room temperature.
Q.5: The property of metals by which it can be drawn into a wire is known as _________.
Q.6: When a copper vessel is exposed to moist air for long, it acquires a dull _______ coating.
Q.7: In general, metallic oxides are _________ in nature.
Q.8: Metals are said to be ________, as they produce ringing sounds.
Q.9: The name of the product formed in the reaction of sulphur and oxygen is ________________.
a) sulphur dioxide
b) suphuric acid
c) sulphuric oxide
Q.10: _________ metal is stored in kerosene as it reacts vigorously with oxygen and water.
b) wooden container
Q.11: ___________ is a very reactive non-metal and catches fire if exposed to air.
Q.12: Metals react with acids and produce metal salts and ________ gas.
Q.13: ________ reactive metals displace less reactive metals from their compounds in aqueous solutions.
Q.14: If a substance cannot be broken down further by chemical reactions, by cooling, heating or by electrolysis, it is called ___________.
Q.15: __________ are used in fertilisers to enhance growth of plants.