Chemistry The metallic constituents of hard water are : Magnesium, tin and iron Iron, tin and calcium Calcium, magnesium and iron Magnesium, calcium and tin Magnesium, tin and iron Iron, tin and calcium Calcium, magnesium and iron Magnesium, calcium and tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a precious/semi-precious stone? Ruby Sapphire Emerald Pearl Ruby Sapphire Emerald Pearl ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which component referred to as 'Milk sugar'? Galactose Lactose Sucrose Maltose Galactose Lactose Sucrose Maltose ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper substances when exposed to air gains a green coating due to the formation of: Cu(NO3)2 CuSO4 CuO CuCO3 Cu(OH)2 Cu(NO3)2 CuSO4 CuO CuCO3 Cu(OH)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is an example of noble gas ? Chlorine Hydrogen Helium Nitrogen Chlorine Hydrogen Helium Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in embalming biological materials is Gaseous formaldehyde Formaldehyde in methanol Ethylene glycol Formaldehyde in water Gaseous formaldehyde Formaldehyde in methanol Ethylene glycol Formaldehyde in water ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS