Q72 / 270 · NDA 2012 (Phase 2) · General Ability

The most important raw material used in the manufacture of cement are

A
Potassium nitrate, charcoal and sulphur
B
Limestone, clay and gypsum
C
Transition metal oxides, sodium hydroxide or potassium hydroxide
Correct answer
D
Limestone, sodium carbonate and silica

Solution

The correct answer is option D.

Hence, the correct answer is option: 'D'.

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