2020To obtain pure carbon(ii)oxide from its mixture with carbon(iv)oxide, the mixture should be?See more
2020When a solid substance disappears completely as a gas on heating, the substance is said to have undergone?See more
2020When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes?See more
2020An organic compound that does not undergo a reaction with both hydrogen cyanide and hydroxylamine can be?See more
2020Which of the following types of bonding does not involve the formation of new substances?See more
2020What quantity of electricity will liberate 0.125 mole of oxygen molecules during the electrolysis of dilute sodium chloride solution?See more
2020A gaseous metallic chloride MCl consists of 20.22% of M by mass. The formula of the chloride is?[ M = 27, Cl = 35.5]See more
202032g of anhydrous copper(ii)tetraoxosulphate(vi) dissolved in 1dm\(^3\) of water generated 13.0kj of heat. The heat solution is?See more
2020Chromatography is used to separate components of mixture which differ in their rates of ?See more
2020A few drop of conc HCL are added to about 10cm\(^3\) of a solution of PH 3.4. The PH of the resulting mixture is?See more