Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Hydrogen peroxide Barium peroxide Ozone Sodium peroxide Hydrogen peroxide Barium peroxide Ozone Sodium peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The coloured discharge tubes for advertisement mainly contain Argon Neon Helium Xenon Argon Neon Helium Xenon ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a bond is formed between two atoms, the energy of the system will Decrease Increase Remain the same May increase or decrease Decrease Increase Remain the same May increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is the heaviest metal among the following? Iron Gold Silver Copper Iron Gold Silver Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry If the sewage is fully oxidized, the nitrogen is in the form of Ammonia Nitrites Nitramines Nitrates Ammonia Nitrites Nitramines Nitrates ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hardest allotrope of carbon is Diamond Coke Graphite Lamp black Diamond Coke Graphite Lamp black ANSWER DOWNLOAD EXAMIANS APP
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