Question
The highest number of helium atoms is in
NEET
Chemistry
Some Basic Concepts of Chemistry
2024
NEET 2024
NEET Chemistry Question (2024) — Solution
Options
- A. 4 u of helium
- B. 4 g of helium
- C. 2.271098 L of helium at STP
- D. 4 mol of helium
Answer
D. 4 mol of helium
Step-by-step solution
(1) 4 u of He = 4 u 4 u =1 He atom (2) 4 g of Helium = 4 ~g 4 ~g mole =1 mole = N _ A He atom (3) aligned 2.2710982 of He at STP & = 2.271 22.710982 mole \\ & =0.1 ~mole \\ & =0.1 ~N _ A He atom aligned (4) 4 mol of He =4 ~N _ A He atoms
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