Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Barium peroxide Ozone Hydrogen peroxide Sodium peroxide Barium peroxide Ozone Hydrogen peroxide Sodium peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nuclear particles which are assumed to hold the nucleons together are electrons mesons positrons neutrons electrons mesons positrons neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the maximum Water Vapour content in the atmosphere? 3 to 4 per cent 2 to 3 per cent 5 to 6 per cent 4 to 5 per cent 3 to 4 per cent 2 to 3 per cent 5 to 6 per cent 4 to 5 per cent ANSWER DOWNLOAD EXAMIANS APP
Chemistry Charcoal is used in water treatment as a/an Coagulant Absorbent Solvent Adsorbent Coagulant Absorbent Solvent Adsorbent ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a precious/semi-precious stone? Sapphire Emerald Ruby Pearl Sapphire Emerald Ruby Pearl ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water Manganese Calcium Magnesium None of these Manganese Calcium Magnesium None of these ANSWER DOWNLOAD EXAMIANS APP
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