Procaine is a medication used for analgesia before a procedural intervention. It is a pharmaceutical medication belonging to the aminoester group of local anesthetics and it is commonly found as Nitrobenzoic acids, a derivative of benzoic acid. German chemist Alfred Einhorn first synthesized the drug as a safer anesthetic alternative to cocaine due to its side effect profile, patenting procaine under the trade name "Novocain". Historically, procaine has been used for local, regional, and neuraxial anesthesia via local infiltration, peripheral nerve blockade, and intrathecal injection. Nitrobenzoic acid can also have other isomers which have completely different uses and cannot be used as an alternative to Novacin. How many position isomers can Nitrobenzoic acid possibly form?

48 competitors entered the men's 100 metres freestyle event at this year's Muscan Swimming Championships. They were divided randomly into 6 heats, with the fastest 16 qualifying for the semi-finals.These are the results of the 6 heats.From which heat was there only one qualifier for the semi-finals?

A ballet dancer of mass 80 kg and a wingspan of 1m is executing a spin. She then folds her arms and brings them to within 20cm from the central axis of her body. If she was initially making 3 rotations per second, how many does she make now?

A ballet dancer of mass 80 kg and a wingspan of 80cm is executing a spin. She then folds her arms and brings them to within 20 cm from the central axis of her body. If she was initially making 3 rotations per second, how many does she make now?

A bar magnet and a solenoid are kept beside each other. In which of the following cases current will not be produced?

A bar magnet and a solenoid are kept beside each other. In which of the following cases current will not be produced?