Give one example of each of the following.
(a) A non-metal which is lustrous
(b) A non-metal which is liquid at room temperature
(c) A metal which is soft
(d) A metal which is non-malleable

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Solution

(a) Iodine
Non-metals are generally non-lustrous but iodine shows an exceptional behaviour by being a lustrous non-metal. [1 mark]
(b) Bromine
Non-metals generally exist in solid or gaseous state at room temperature but bromine is an exceptional non-metal that exists in liquid state. [1 mark]
(c) Sodium
Metals are generally hard but sodium is a metal which is soft. [1 mark]
(d) Zinc
Metals are generally malleable but zinc is a metal which is non-malleable. [1 mark]

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(a) a soft metal.

(b) a metal which is brittle.

(d) a liquid metal.

(e) a metal which is a poor conductor of electricity.

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(a) two metals which are liquid at room temperature,

(b) metal which do not corrode easily

(d) a non-metal which is lustrous,

(e) a non-metal which conducts electricity,

(f) a metal which is brittle,

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(m) a non-metal which shows reducing property,

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