Chemistry The octane number of zero is assigned to n-heptane 2-methyl octane iso-octane 3-methyl octane n-heptane 2-methyl octane iso-octane 3-methyl octane ANSWER DOWNLOAD EXAMIANS APP
Chemistry When cathode rays strike a target of high atomic weight, they give rise to Positive rays X-rays ?-rays ? and ? rays Positive rays X-rays ?-rays ? and ? rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is found in all organic compounds Carbon Calcium Nitrogen Oxygen Carbon Calcium Nitrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Sodium peroxide Barium peroxide Hydrogen peroxide Ozone Sodium peroxide Barium peroxide Hydrogen peroxide Ozone ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is a common name for the substance which irritates lachrymal glands ? Tear Gas Anaesthetic Gas Noble Gas Laughing Gas Tear Gas Anaesthetic Gas Noble Gas Laughing Gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry The molecular mass of a gas is Half its vapour pressure Not related to its vapour pressure Equal to its vapour pressure Twice its vapour pressure Half its vapour pressure Not related to its vapour pressure Equal to its vapour pressure Twice its vapour pressure ANSWER DOWNLOAD EXAMIANS APP
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