Chemistry The addition of gypsum to portland cement helps in : Reduction in the cost of cement Rapid setting of cement Increasing the strength of cement Preventing rapid setting of cement Reduction in the cost of cement Rapid setting of cement Increasing the strength of cement Preventing rapid setting of cement ANSWER DOWNLOAD EXAMIANS APP
Chemistry Peroxyacetyl nitrate is a Secondary pollutant Acidic dye Plant hormone Vitamin Secondary pollutant Acidic dye Plant hormone Vitamin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Phosphorus is kept in water because Its ignition temperature is very high Its ignition temperature is very low Its critical temperature is low Its critical temperature is high Its ignition temperature is very high Its ignition temperature is very low Its critical temperature is low Its critical temperature is high ANSWER DOWNLOAD EXAMIANS APP
Chemistry When cathode rays strike a target of high atomic weight, they give rise to Positive rays ? and ? rays X-rays ?-rays Positive rays ? and ? rays X-rays ?-rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry In surgery, metal pins are used for joining together broken bones. These metal pins remain uncorroded in the body. What is the material of these pins? Titanium Iron Aluminium Copper Titanium Iron Aluminium Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry German silver, an alloy, does not contain the metal Nickel Zinc Silver Copper Nickel Zinc Silver Copper ANSWER DOWNLOAD EXAMIANS APP
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