Q4 What is the frequency s of radiation that has a

Last updated: 5/12/2023

Q4 What is the frequency s of radiation that has a wavelength of 459 nm A 6 54 x 10 B 6 54 x 10 C 1 53 10 Q5 Which one of the following is not a redox reaction A 2H 02H O Oza C BaCl K CrOBaCrO KCl B 2 16 x 10 m D 18 10 V B Na 3H 2NH D 2Al Fe O Al O 2Fe Q6 What are the reacting ions when Pb NO and NaCl react in aqueous solution A Pb Cit B Na NO C Pb NO D Na Cl Q7 The correct order of increasing in the first ionization energy A B Be N O D B O Be N C B Be O N B Be B N O Q8 What is the A of light that is emitted when an excited electron in the hydrogen atom falls from n 7 to n 47 A 4 45 x 10 m C 9 18 x 100 m D 2 16 x 10 m