Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 150 km 100 km 300 km 200 km 150 km 100 km 300 km 200 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nuclear particles which are assumed to hold the nucleons together are electrons mesons positrons neutrons electrons mesons positrons neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most extensive, commercially useful source of thorium as monazite sand occurs in India at Travancore coast Orissa coast Gujarat coast West Bengal coast Travancore coast Orissa coast Gujarat coast West Bengal coast ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is extensively used for sterilizing water ? Borax powder Bleaching powder Soda powder Alum Borax powder Bleaching powder Soda powder Alum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used in welding broken pieces of iron rails and machine parts? Aluminium powder None of these Solder Aluminium sulphate Aluminium powder None of these Solder Aluminium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry How many neutrons are there in 92U238 atom ? 330 92 146 238 330 92 146 238 ANSWER DOWNLOAD EXAMIANS APP
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