Chemistry 'Plaster of Paris' is made by partial dehydration of Epsom salt Green vitriol Blue vitriol Gypsum salt Epsom salt Green vitriol Blue vitriol Gypsum salt ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main active constituent of tea and coffee is chlorophyll aspirin caffeine nicotine chlorophyll aspirin caffeine nicotine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Number of neutrons in an atom of hydrogen is Three Zero One Two Three Zero One Two ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by man was gold copper bronze iron gold copper bronze iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hardest allotrope of carbon is Lamp black Graphite Coke Diamond Lamp black Graphite Coke Diamond ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Atomic theory' of matter was given by Newton Pascal Avogadro Dalton Newton Pascal Avogadro Dalton ANSWER DOWNLOAD EXAMIANS APP
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