Chemistry Which substance is used to retard the setting action of cement? CaO CaSO4, 2H2O Na2O + K2O Al2O3 CaO CaSO4, 2H2O Na2O + K2O Al2O3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Depletion of ozone layer causes Lung cancer Breast cancer Blood cancer Skin cancer Lung cancer Breast cancer Blood cancer Skin cancer ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of ozone in the stratosphere is responsible for Supplying oxygen for people travelling in jets Checking the penetration of ultra-violet rays to the earth Higher rate of photosynthesis Increasing the average global temperature in recent years Supplying oxygen for people travelling in jets Checking the penetration of ultra-violet rays to the earth Higher rate of photosynthesis Increasing the average global temperature in recent years ANSWER DOWNLOAD EXAMIANS APP
Chemistry Periodic table contains how many groups 18 19 16 17 18 19 16 17 ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is used in storage batteries? Copper Tin Lead Zinc Copper Tin Lead Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bauxite is an alloy of which of the following metals ? Silver Iron Tin Aluminium Silver Iron Tin Aluminium ANSWER DOWNLOAD EXAMIANS APP
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