Chemistry Which among the following coal contains 90 per cent of carbon? Lignite Peat Bitumen Anthracite Lignite Peat Bitumen Anthracite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms of different elements have Different atomic number and different number of valence electrons Same number of electrons and neutrons Different atomic number and same eletronic configu-ration Same atomic number and same electronic configuration Different atomic number and different number of valence electrons Same number of electrons and neutrons Different atomic number and same eletronic configu-ration Same atomic number and same electronic configuration ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is pure matter ? Brass Iron Air Carbon–dioxide Brass Iron Air Carbon–dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Adding Cl2 to benzene in the presence of AlCl3 is an example of : Addition reaction None of the options Substitution reaction Elimination reaction Addition reaction None of the options Substitution reaction Elimination reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry The non-metal found in the liquid state is Chlorine Fluorine Nitrogen Bromine Chlorine Fluorine Nitrogen Bromine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following metals provides amphoteric oxide ? Calcium Silver Aluminium Sodium Calcium Silver Aluminium Sodium ANSWER DOWNLOAD EXAMIANS APP
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