+1 vote
in Construction & Building Materials by (188k points)
Iron oxide imparts ________ colour to the bricks.

(a) Red

(b) White

(c) Black

(d) Grey

I have been asked this question in final exam.

Query is from Bricks topic in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials

1 Answer

+1 vote
by (1.2m points)
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Best answer
The correct choice is (a) Red

To explain I would say: The percentage of iron oxide desirable in good brick earth is 5-6%. Iron oxide imparts a red colour to the bricks.

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