MCQOPTIONS
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| 1. |
The number of molecules in 4.25 g of ammonia is approximately [CBSE PMT 2002] |
| A. | \[0.5\times {{10}^{23}}\] |
| B. | \[1.5\times {{10}^{23}}\] |
| C. | \[3.5\times {{10}^{23}}\] |
| D. | \[2.5\times {{10}^{23}}\] |
| Answer» C. \[3.5\times {{10}^{23}}\] | |