Chemistry Silver nitrate solution is kept in brown bottles in laboratory because Brown bottles do not react with it It reacts with ordinary white bottles Brown bottles react with it Brown bottles stops the passage of light through it Brown bottles do not react with it It reacts with ordinary white bottles Brown bottles react with it Brown bottles stops the passage of light through it ANSWER DOWNLOAD EXAMIANS APP
Chemistry In drinking water supply, which of the following treatments is not involved Softening Sedimentation Coagulation Disinfection Softening Sedimentation Coagulation Disinfection ANSWER DOWNLOAD EXAMIANS APP
Chemistry The high reactivity of fluorine is due to strong F - F bond its high electro negativity availability of d-orbitals small size of fluorine atom strong F - F bond its high electro negativity availability of d-orbitals small size of fluorine atom ANSWER DOWNLOAD EXAMIANS APP
Chemistry Maximum permissible concentration of total hardness in drinking water is 100 500 50 200 100 500 50 200 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Catalyst is a substance which Increases the rate of the reaction Decreases the rate of reaction None of these Has no action on the rate of the reaction Increases the rate of the reaction Decreases the rate of reaction None of these Has no action on the rate of the reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry The rusting of iron is a/an Physical change Electrical change Electrochemical change None of these Physical change Electrical change Electrochemical change None of these ANSWER DOWNLOAD EXAMIANS APP
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