What are the number of moles of CO2 which contains 16 g of oxygen?

What are the number of moles of CO2 which contains 16 g of oxygen?

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1) The National Chemical Laboratory is situated in

2) The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2^nd orbit to 3^rd orbit is

3) The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle?

4) The main buffer system of the human blood is

5) The formula C₆H₅-CO-CH₃ represents