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NEET2024ChemistrySome Basic Concepts of ChemistryActual

The highest number of helium atoms is in

Options

  1. A4 u of helium
  2. B4 g of helium
  3. C2.271098 L of helium at STP
  4. D4 mol of helium

Correct 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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