Chemistry The number of neutrons present in an element having mass number 226 and atomic number 88 is : 88 50 314 138 88 50 314 138 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? 1/4 1/8 1/6 1/3 1/4 1/8 1/6 1/3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following electrodes is used in strongly alkaline solution Silver - silver chloride electrode Mercury - mercurous sulphate electrode Mercury - mercuric oxide electrode Mercury - mercurous chloride electrode Silver - silver chloride electrode Mercury - mercurous sulphate electrode Mercury - mercuric oxide electrode Mercury - mercurous chloride electrode ANSWER DOWNLOAD EXAMIANS APP
Chemistry An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is 36 53 17 19 36 53 17 19 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The important ore of aluminium is Haematite Cryolite Fluorspar Bauxite Haematite Cryolite Fluorspar Bauxite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water Manganese Calcium Magnesium None of these Manganese Calcium Magnesium None of these ANSWER DOWNLOAD EXAMIANS APP
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