Chemistry The addition of gypsum to portland cement helps in : Rapid setting of cement Reduction in the cost of cement Preventing rapid setting of cement Increasing the strength of cement Rapid setting of cement Reduction in the cost of cement Preventing rapid setting of cement Increasing the strength of cement ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer of atmosphere absorbs: All radiations of Light Cosmic rays. Ultraviolet rays Infra-red rays All radiations of Light Cosmic rays. Ultraviolet rays Infra-red rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is not a characteristic of transition metals? Malleability Tendency to gain electrons Low electronegativity Low ionization energy Malleability Tendency to gain electrons Low electronegativity Low ionization energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following has a maximum tendency to form M3 ion ? P Bi As N P Bi As N ANSWER DOWNLOAD EXAMIANS APP
Chemistry Metal are good conductors, because They contain free electrons The molecules in them are very close to each other They contain reflecting surface The molecules in them collide very freely They contain free electrons The molecules in them are very close to each other They contain reflecting surface The molecules in them collide very freely ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by man was copper iron bronze gold copper iron bronze gold ANSWER DOWNLOAD EXAMIANS APP
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