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प्रश्न
Correct the following statement :
Equal masses of all gases under identical conditions contain the same number of molecules.
उत्तर
The correct statement is that equal volumes of all gases under identical conditions contain the same number of molecules.
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\[\ce{(NH4)2Cr2O7 ->[heat] N2(g) + 4H2O(g) + Cr2O3}\]
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