Chemistry The octane number of zero is assigned to iso-octane n-heptane 3-methyl octane 2-methyl octane iso-octane n-heptane 3-methyl octane 2-methyl octane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is methane ozone oxygen helium methane ozone oxygen helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a bond is formed between two atoms, the energy of the system will Remain the same May increase or decrease Increase Decrease Remain the same May increase or decrease Increase Decrease ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following elements is found in maximum percentage in the human body ? Carbon Hydrogen Oxyzen Nitrozen Carbon Hydrogen Oxyzen Nitrozen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The total energy of revolving electron in an atom Cannot be negative Can have any value above zero Can never be positive Will always be positive Cannot be negative Can have any value above zero Can never be positive Will always be positive ANSWER DOWNLOAD EXAMIANS APP
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