Chemistry The gas used to extinguish fire is Carbon dioxide Nitrogen Carbon monoxide Neon Carbon dioxide Nitrogen Carbon monoxide Neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Besides CO2, the other green house gas is O2 N2 N2 Ar Ar CH4 O2 N2 N2 Ar Ar CH4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is used in storage batteries? Tin Lead Zinc Copper Tin Lead Zinc Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal used for making aircrafts and rockets is Nickel Lead Copper Aluminium Nickel Lead Copper Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry When iron rusts, its weight Remains the same First increases and then decreases Increases Decreases Remains the same First increases and then decreases Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain' is caused due to air - pollution by Nitrous oxide and sulphur dioxide Methane Carbon dioxide Carbon monoxide Nitrous oxide and sulphur dioxide Methane Carbon dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
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