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Question Q138) The number of atoms in 0.1 mol of a triatomic gas is (NA=6.02× 1023mol–1) [AIPMT (Prelims)-2010]



SOLUTION

Number of atoms in one mole of triatomic gas= 3
. Number of atoms = 3 × 0.1 × 6.022 × 1023 = 1.806 × 1023
Answer (b)