Question

5. The table below is the lists of some observed properties of two unknown substances. Which of the following statements is TRUE about these substances?
Substances
Appearance
Electrical Conductivity
Reaction of oxide solution to litmus paper
Reaction when hit by hammer
X
Black solid
Conductor
Blue-red
Became powder
Y
Shiny solid
Conductor
Red-blue
flattened
A. both X & Y are metals​​
B. only Y is a metal
C. only X is a metal
D. both X & Y are non metals

Answer 1

Explanation:

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