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Chemistry Fsc Part 1 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | What information does the pricnipal quantum numerb (n) gives us about orbitals |
<p>size</p> <p>Shape</p> <p>Spin</p> <p>Size and shape</p> |
| 2 | How many d orbitals are there in a givne energy level. |
<p>1</p> <p>5</p> <p>3</p> <p>7</p> |
| 3 | The three p orbitals in a given energy level are oriented. |
<p>Along the same axis</p> <p>At 45<sup>o</sup> each other</p> <p>Mutually perpendicular to each other along the x, y , and z axes.</p> <p>In a complex tetrahedral arrangement</p> |
| 4 | A p orbital has a characteritic shape with how many lobes. |
<p>1</p> <p>2</p> <p>3</p> <p>4</p> |
| 5 | The quantum numebr values for the fourth electron of Be atom are. |
<p>1,0,0</p> <p>2,0,0</p> <p>2,1,0</p> <p>1,1,1</p> |
| 6 | An electron having the set of values n = 4, 1 = 0 ,m = 0 and s =+1/2 lies in |
<p>2 s</p> <p>4 s</p> <p>3s</p> <p>5s</p> |
| 7 | Quantum numebr values for 2 p orbitals are. |
<p>n = 2, , l = 1</p> <p>n = 1, 1= 2</p> <p>n = 1, 1= 0</p> <p>n= 2,1 = 0</p> |
| 8 | When 3d subshell is completely filed, the next entering electron goes into. |
<p>4f</p> <p>4 p</p> <p>4s</p> <p>4 d</p> |
| 9 | The quantum number 'm' of a free gascous atom is associated with |
<p>The effective volume of the orbital</p> <p>The shape of the orbital</p> <p>The spatial orientation of the orbital</p> <p>The energy of the orbital in the absence of a magnetic field</p> |
| 10 | Which oxidation state will not shown by S |
<p>-2</p> <p>+4</p> <p>+8</p> <p>+2</p> |
| 11 | Element that can show variable oxidation states. |
<p>Mg</p> <p>Ca</p> <p>S</p> <p>Mg</p> |
| 12 | Oxidation state fo P in P4 O10 is. |
<p>+2</p> <p>+3</p> <p>+5</p> <p>+4</p> |
| 13 | Acidic chlorides have pH? |
<p>More than 7</p> <p>Less than 7</p> <p>Equal to 7</p> <p>May be any</p> |
| 14 | Acidic oxides are |
<p>Metallic oxides</p> <p>Non Metallic oxides</p> <p>Metalloid oxides</p> <p>All</p> |
| 15 | Select basic oxide. |
<p>MgO</p> <p>CO2</p> <p>SiO2</p> <p>Al2 O2</p> |
| 16 | Metallic oxides are...............in nature. |
<p>Acidic</p> <p>Basic</p> <p>Amphotric</p> <p>Depends upon oxide</p> |
| 17 | Na burns with oxygen to give. |
<p>Golden yellow flame</p> <p>Golden brown flame</p> <p>Crimson red flame</p> <p>Intense white flame</p> |
