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Mark 'T' if the statement is true and 'F' if it is false. (a) Generally, non metals react with acids.

Q4. Mark ‘T’ if the statement is true and ‘F’ if it is false.

(a) Generally, non-metals react with acids.                       ( )

(b) Sodium is a very reactive metal.                                  ( )

(c) Copper displaces zinc from zinc sulphate solution.      ( )

(d) Coal can be drawn into wires.                                       ( )

Answers (1)
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(a) Generally, non-metals react with acids.                       (F)

                -Non-metals do not react with acids (because they cannot donate an electron to hydrogen ion).

(b) Sodium is a very reactive metal.                                  (T)

                -Sodium reacts with water to liberate heat. That is why it is kept in kerosene.

(c) Copper displaces zinc from zinc sulphate solution.      (F)

                -Zinc is more reactive than copper. Hence, copper cannot displace zinc.

(d) Coal can be drawn into wires.                                       (F)

                - Coal is very brittle and breaks when force is applied.

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