Chemistry Gobar gas mainly contains Hydrogen sulphide Methane Carbon dioxide Carbon monoxide Hydrogen sulphide Methane Carbon dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vinegar is an aqueous solution of Hydrochloric acid Oxalic acid Citric acid Acetic acid Hydrochloric acid Oxalic acid Citric acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Normal rainwater is slightly acidic due to the presence of Sulphur dioxide Methane Carbon dioxide None of these Sulphur dioxide Methane Carbon dioxide None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is Lighter than hydrogen Non-combustible More stable More abundant than hydrogen Lighter than hydrogen Non-combustible More stable More abundant than hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen which is vital for life is a product of photosynthesis and comes from Carbon dioxide Oxides of mineral elements Carbonates from soil Water Carbon dioxide Oxides of mineral elements Carbonates from soil Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a bond is formed between two atoms, the energy of the system will Decrease Remain the same May increase or decrease Increase Decrease Remain the same May increase or decrease Increase ANSWER DOWNLOAD EXAMIANS APP
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