Chemistry Domestic cooking gas consists mostly of Hydrogen and acetylene Ethylene and carbon monoxide Methane and ethane Liquified butane and isobutane Hydrogen and acetylene Ethylene and carbon monoxide Methane and ethane Liquified butane and isobutane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Food cans are coated with tin and not with zinc because Zinc is more reactive than tin Zinc has a higher melting point than tin Zinc is costlier than tin Zinc is less reactive than tin Zinc is more reactive than tin Zinc has a higher melting point than tin Zinc is costlier than tin Zinc is less reactive than tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry The oxidation number of nickel in K4[Ni(CN)4] is 8 4 –4 Zero 8 4 –4 Zero ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a natural dye ? Phenolphthalein Crystal violet Aniline blue Alizarin Phenolphthalein Crystal violet Aniline blue Alizarin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen in water is commonly found in the form of Nitrite Nitrous oxide Nitrate Nitric oxide Nitrite Nitrous oxide Nitrate Nitric oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium vapour lamps glow with yellow colour. This is due to Its ability to absorb all other colours except yellow The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour The low ionisation energy of sodium Its ability to absorb all other colours except yellow The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour The low ionisation energy of sodium ANSWER DOWNLOAD EXAMIANS APP
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