Chemistry Chemical formula of washing soda is Na2CO3.10H2O NaHCO3 Ca(OH)2 Na2SO4.10H2O Na2CO3.10H2O NaHCO3 Ca(OH)2 Na2SO4.10H2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water in nature is River water Rain water Lake water Sea water River water Rain water Lake water Sea water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stains of rust on clothes can be removed by : H2O2 Alcohol Oxalic acid Petrol H2O2 Alcohol Oxalic acid Petrol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionic radii of N3-, O2-, F- and Na+ follows the order O2- > F- > Na+ > N3- N3- > O2- > F- > Na+ N3- > Na+ > O2- > F- Na+ > O2- > N3- > F- O2- > F- > Na+ > N3- N3- > O2- > F- > Na+ N3- > Na+ > O2- > F- Na+ > O2- > N3- > F- ANSWER DOWNLOAD EXAMIANS APP
Chemistry In which of the following ions , the colour is not due to d-d transition ? [CrO4]2− [Cu(NH3)4]2+ [CoF6]3+ [Ti(H2O)6]3+ [CrO4]2− [Cu(NH3)4]2+ [CoF6]3+ [Ti(H2O)6]3+ ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas is most stable at room temperature N2 F2 O2 H2 N2 F2 O2 H2 ANSWER DOWNLOAD EXAMIANS APP
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