RBSE Sec Voc Construction Practice Questions - Rajasthan RBSE Secondary Construction - Vocational Code 114 Exam

Ordinary Portland Cement (OPC) hardens and gains strength mainly because of:

Evaporation of water only, without any chemical reaction A chemical reaction with water called hydration Mixing with oil that seals pores instantly Heating the bag in sunlight for one hour

Correct Answer:

A chemical reaction with water called hydration

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