Chemistry The product, 9-nitroanthracene is obtained from anthracene by the action of Nitric acid in excess Nitric acid and ethyl alcohol Nitric acid and acetic anhydride Nitric acid and acetic acid Nitric acid in excess Nitric acid and ethyl alcohol Nitric acid and acetic anhydride Nitric acid and acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following nonmetals shows allotropy in the liquid state? Carbon Phosphorous Sulphur Bromine Carbon Phosphorous Sulphur Bromine ANSWER DOWNLOAD EXAMIANS APP
Chemistry PVC is obtained by the polymerisation of Styrene Acetylene Propane Vinyl chloride Styrene Acetylene Propane Vinyl chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rectified spirit is : 95% ethyl alcohol 100% ethyl alcohol Tincture iodine Methylated spirit 95% ethyl alcohol 100% ethyl alcohol Tincture iodine Methylated spirit ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in All of these Semiconductors Transistors Solar energy devices All of these Semiconductors Transistors Solar energy devices ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of ozone in the stratosphere is responsible for Supplying oxygen for people travelling in jets Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth Higher rate of photosynthesis Supplying oxygen for people travelling in jets Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth Higher rate of photosynthesis ANSWER DOWNLOAD EXAMIANS APP
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