QUES-1) The highest number of helium atoms is in ………….
4 u of helium
4 g of helium
2.271098 L of helium at STP
4 mol of helium
(NEET 2024)
Answer:- option 4 is the correct answer
Solution: (1) 4 u of helium = 1 atom helium(which is 4 times heavier than hydrogen atom) (2) 4 g of helium = 1 mole helium which is 6.022×10^23 atoms (3) 2.271098 L of helium at STP = (2.271098/22.4) x 6.022 x 10^23 =0.610 x 10^23 atoms (4) 4 mole of helium = 4 x 6.022 x 10 ^23 =24.088 x 10^23 atoms
