Chemistry Total number of halogen elements found in the periodic table is 5 8 13 3 5 8 13 3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals occurs in free state ? Copper Zinc Iron Lead Copper Zinc Iron Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry The third shell of an atom can have a maximum of ______ electrons 15 18 13 21 15 18 13 21 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Impure camphor is purified by Steam distillation Fractional crystallisation Sublimation Fractional distillation Steam distillation Fractional crystallisation Sublimation Fractional distillation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant constituent of atmospheric air is : Oxygen Carbon Nitrogen Hydrogen Oxygen Carbon Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The addition of gypsum to portland cement helps in : Reduction in the cost of cement Increasing the strength of cement Preventing rapid setting of cement Rapid setting of cement Reduction in the cost of cement Increasing the strength of cement Preventing rapid setting of cement Rapid setting of cement ANSWER DOWNLOAD EXAMIANS APP
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