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The constituents of porland cement are
Options
(a) CaCO₃+clay+sand
(b) CaCO₃+aluminium silicate
(c) CaCO₃+clay+SiO₂
(d) CaCO₃+gypsum+clay
Correct Answer:
CaCO₃+gypsum+clay
Explanation:
The essential constituents of portland cement are CaO, silica, alumina, magnesium oxide, and ferric oxide. The essential raw materials used are CaCO₃, gypsum and clay. CaCO₃ provides CaO and Clay provides silica as well as alumina and ferric oxide.
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Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The number of valence electrons in 4.2g of N³⁻ ion is
- Maximum number of H-bonds in one molecule of water is
- The case of adsorption of the hydrated alkali metal ions on an ion-exchange
- In the case of auto catalysis
- Aqueous solution of Cu (II) gives an intense blue solution with ammonia,which is due
Topics: S and Some P Block Elements (157)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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