Question

Properties of substances W, X, Y and Z are listed below:

W: A liquid metal
X: A liquid non-metal
Y: Gaseous non-metal
Z: A non-metal which conducts electricity.

W, X, Y and Z are respectively

a. Copper, phosphorus, nitrogen and carbon
b. Mercury, bromine, oxygen and graphite.
c. Iron, iodine, hydrogen and oxygen
d. Mercury, sulphur, chlorine and hydrogen

Answer 1

`\mathrm\red{b.~Mercury,~Bromine,~Oxygen~and~Graphite}`

• Mercury is a liquid metal .

• Bromine is a liquid & a non metal .

• At last, oxygen & graphite are non metals but conduct electricity .

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