Chemistry Which one of the following contributes largely to the ‘green house effect’ ? Ozone Water vapour Carbon monoxide Carbon dioxide Ozone Water vapour Carbon monoxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of ‘Common salt’ is Sodium chloride Ammonium chloride Calcium chloride Sodium nitrate Sodium chloride Ammonium chloride Calcium chloride Sodium nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide level in the atmosphere can be reduced by using Catalytic converters in industry Low - sulphur fuels Static electricity to attract it in factory chimneys More efficient car engines Catalytic converters in industry Low - sulphur fuels Static electricity to attract it in factory chimneys More efficient car engines ANSWER DOWNLOAD EXAMIANS APP
Chemistry When cathode rays strike a target of high atomic weight, they give rise to ? and ? rays Positive rays ?-rays X-rays ? and ? rays Positive rays ?-rays X-rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is not a characteristic of transition metals? Low ionization energy Malleability Low electronegativity Tendency to gain electrons Low ionization energy Malleability Low electronegativity Tendency to gain electrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a monoatomic gas? Neon Oxygen Fluorine Nitrogen Neon Oxygen Fluorine Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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