MHT CET Chemistry question

The number of Na atom in 46 g Na (Atomic weight of Na = 23) is.

Answer: (D)

Solution

46 g Na = 46/23 = 2 mol = 2 × 6.023 × 10²³ = 12.046 × 10²³ atoms; 1 mol would give (a),

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Question ID VK-041125