Chemistry Which one of the following elements is used in the manufacture of safety matches? Phosphorus Silicon Graphite Sodium Phosphorus Silicon Graphite Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Interveinal necrotic spots on leaves appear due to O3injury SO2injury NO2injury HF injury O3injury SO2injury NO2injury HF injury ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metallic constituents of hard water are : Magnesium, tin and iron Iron, tin and calcium Magnesium, calcium and tin Calcium, magnesium and iron Magnesium, tin and iron Iron, tin and calcium Magnesium, calcium and tin Calcium, magnesium and iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most extensive, commercially useful source of thorium as monazite sand occurs in India at Gujarat coast Orissa coast West Bengal coast Travancore coast Gujarat coast Orissa coast West Bengal coast Travancore coast ANSWER DOWNLOAD EXAMIANS APP
Chemistry 0.01 mole of NaOH is added to 10 liters of water. The pH of water changes by 3 6 7 4 3 6 7 4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is filled in ballons because It is lighter than air It is one of the constitutents of water It is a noble gas Its atomic number is 2 It is lighter than air It is one of the constitutents of water It is a noble gas Its atomic number is 2 ANSWER DOWNLOAD EXAMIANS APP
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