Chemistry Major portion of the earth’s crust is mainly constituted by Oxygen and Iron Silicon and Iron Silicon and Aluminium Oxygen and Silicon Oxygen and Iron Silicon and Iron Silicon and Aluminium Oxygen and Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ‘Green House effect’ is produced due to the presence of excess amount of Methane Carbon monoxide Sulphur dioxide Nitrogen dioxide Methane Carbon monoxide Sulphur dioxide Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vinegar is ________ . Glacial formic acid Glacial acetic acid Diluted formic acid Diluted acetic acid Glacial formic acid Glacial acetic acid Diluted formic acid Diluted acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamonds are glittering and attractive because light incident on them undergoes Highest refraction Multiple surface reflections Multiple internal reflections Hundred percent transmission Highest refraction Multiple surface reflections Multiple internal reflections Hundred percent transmission ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main constituent of natural gas is Propane Methane Butane Ethane Propane Methane Butane Ethane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used for refrigeration? Chlorine Sulphur dioxide Freon Phosphine Chlorine Sulphur dioxide Freon Phosphine ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS