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Chemistry Fsc Part 1 Chapter 4 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | The number of molecule in 8g of oxygen gas is. |
<p>6.02 x 10<sup> 23</sup> </p> <p>1.50 x 10<sup> 23</sup> </p> <p>0.75 x 10<sup> 23</sup> </p> <p>12.4 x 10<sup> 23</sup> </p> |
| 2 | How many atoms are present in one mole of water. |
<p>3</p> <p>54</p> <p>12.4 x 10<sup> 23</sup> </p> <p>3</p> |
| 3 | 32 g of oxygen gas contains. |
<p>6.02 x 10<sup> 23</sup> moles </p> <p>6.02 x 10<sup> 23</sup> atoms</p> <p>12.4 x 10<sup> 23</sup> molecules</p> <p>24.4 x 10<sup> 23</sup> atoms</p> |
| 4 | A ring has 6 g of diamond in it. What is the number of atoms in it. |
<p>3.01 x 10<sup> 23</sup></p> <p>6.02 x 10<sup> 23</sup></p> <p>6.02.01 x 10<sup> 9</sup></p> <p>12.01 x 10<sup> 23</sup></p> <p>3.01 x 10<sup> 23</sup></p> |
| 5 | One mole of SO2 conatains. |
<p>6.02 x 10 <sup>23</sup> atoms of oxygen</p> <p>6.022 x 10 <sup>23</sup> atoms of sulphur</p> <p>4 g atoms of SO2</p> <p>18.1 X 10<sup> 23</sup> moles of SO2</p> |
| 6 | The largest numebr of molecules are present in |
<p>3.6 g of H2O</p> <p>4.6 g of C2H5OH</p> <p>2.8 g of CO</p> <p>5.4 g of N2O5</p> |
| 7 | Number of molesin 100 g of KClO3 |
<p>0.76</p> <p>0.56</p> <p>0.816</p> <p>0.014</p> |
| 8 | Mass of moles of CO2 is. |
<p>44 g</p> <p>88 g</p> <p>40 g</p> <p>50 g</p> |
| 9 | 1 Mole of OH-1 ion is equal to |
<p>18 g</p> <p>17 g</p> <p>16 g</p> <p>10 g</p> |
| 10 | Which of the following has maximum mass |
<p>2 moles of P</p> <p>5 moles of H2O</p> <p>2 mole of Na2CO3</p> <p>1 mole of glucose</p> |
| 11 | The number of moles of CH4 in 4 g of gas is |
<p>0.2 moles</p> <p>0.25 mole</p> <p>0.3 mol</p> <p>0.4 mole</p> |
| 12 | The mass of 0.5 mole of Al is |
<p>13.5g</p> <p>12g</p> <p>14 g</p> <p>2.7 g</p> |
| 13 | The sum of atomic masses of all the elements present in a oles in called. |
<p>Atomic mass</p> <p>Ionic mass</p> <p>Molecular mass</p> <p>Emperical formula mass</p> |
| 14 | One mole of water contains. |
<p>81 g water</p> <p>6.02 x 10<sup> 23</sup> atom</p> <p>6.02 x 10<sup> 23</sup> ions</p> <p>6.02 x 10<sup> 23</sup> molecule</p> <p>6.02 x 10<sup> 23</sup> atom</p> |
| 15 | What is the number of moless of oxygen in 11 g of CO2 |
<p>0.25</p> <p>0.50</p> <p>0.75</p> <p>1.0</p> |
| 16 | What are teh numebr f moles of hydrogen atom in 3.2 g of CH4? |
<p>0.2</p> <p>0.4</p> <p>0.6</p> <p>0.8</p> |
| 17 | The mass of one mole chlorine gas is. |
<p>71 g</p> <p>32 g</p> <p>35.5 g</p> <p>23 g</p> |
