Chemistry Adding Cl2 to benzene in the presence of AlCl3 is an example of : Addition reaction Substitution reaction None of the options Elimination reaction Addition reaction Substitution reaction None of the options Elimination reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry In arc welding, Argon is used because of its High calorific value High flammability Ability to lower the melting point of the metal Low reactivity with metal High calorific value High flammability Ability to lower the melting point of the metal Low reactivity with metal ANSWER DOWNLOAD EXAMIANS APP
Chemistry 0.01 mole of NaOH is added to 10 liters of water. The pH of water changes by 7 4 3 6 7 4 3 6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ‘Green House effect’ is produced due to the presence of excess amount of Nitrogen dioxide Carbon monoxide Methane Sulphur dioxide Nitrogen dioxide Carbon monoxide Methane Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following laser types is used in a laser printer? Gas laser Excimer laser Semiconductor laser Dye laser Gas laser Excimer laser Semiconductor laser Dye laser ANSWER DOWNLOAD EXAMIANS APP
Chemistry In the periodic table of elements, on moving from left to right across a period, the atomic radius Does not follow a definite pattern Decreases Increases Remains unchanged Does not follow a definite pattern Decreases Increases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
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