Chemistry Brass gets discoloured in air due to constant exposure in presence of: Aluminium sulphide Aluminium phosphide Hydrogen sulphide Hydrogenated wafers Aluminium sulphide Aluminium phosphide Hydrogen sulphide Hydrogenated wafers ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bauxite is an alloy of which of the following metals ? Tin Silver Iron Aluminium Tin Silver Iron Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The inexpensive and commonly used variety of glass is called soda glass. is made using soda lime was initially used for storing sodium carbonate was used initially for making bottles of soda(carbonated drink) is made using soda(sodium carbonate) is made using soda lime was initially used for storing sodium carbonate was used initially for making bottles of soda(carbonated drink) is made using soda(sodium carbonate) ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicone is a polymer of Silane Dialkyl dichloro silane Tetraalkyl silane Silicon tetrachloride Silane Dialkyl dichloro silane Tetraalkyl silane Silicon tetrachloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is 7.2 x 5x/36 5x x/6 7.2 x 5x/36 5x x/6 ANSWER DOWNLOAD EXAMIANS APP
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