Chemistry The presence of ozone in the stratosphere is responsible for Higher rate of photosynthesis Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth Supplying oxygen for people travelling in jets Higher rate of photosynthesis Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth Supplying oxygen for people travelling in jets ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aspirin is common name of Salicylate Methyl Salicylate Salicylic Acid Acetyl Salicylic Acid Salicylate Methyl Salicylate Salicylic Acid Acetyl Salicylic Acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most commonly used bleaching agent is Sodium chloride Chlorine Carbon dioxide Alcohol Sodium chloride Chlorine Carbon dioxide Alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry When quick lime is added to water No heat change takes place Heat is liberated Heat is absorbed Temperature decreases No heat change takes place Heat is liberated Heat is absorbed Temperature decreases ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following statements is not correct? Vulcanisation of rubber makes it Withstand higher temperatures Soft and flexible Strong and hard Chemical resistant Withstand higher temperatures Soft and flexible Strong and hard Chemical resistant ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Radium Carbon-14 Tritium Phosphorus-31 Radium Carbon-14 Tritium Phosphorus-31 ANSWER DOWNLOAD EXAMIANS APP
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