Chemistry In the periodic table of elements, on moving from left to right across a period, the atomic radius Remains unchanged Does not follow a definite pattern Increases Decreases Remains unchanged Does not follow a definite pattern Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element with highest ionization potential is Helium Carbon Oxygen Boron Helium Carbon Oxygen Boron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ‘Green House effect’ is produced due to the presence of excess amount of Methane Nitrogen dioxide Sulphur dioxide Carbon monoxide Methane Nitrogen dioxide Sulphur dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heating of a ore below its melting point in the absence of air is known as Roasting Calcination Smelting Refining Roasting Calcination Smelting Refining ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused by CO2and CFCs SO2 and particulates NO2and particulates SO2 and NO2 CO2and CFCs SO2 and particulates NO2and particulates SO2 and NO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals is used in Space Crafts to withstand high temperatures ? Fe Ni Ti Pb Fe Ni Ti Pb ANSWER DOWNLOAD EXAMIANS APP
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