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Chemistry Fsc Part 1 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | 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> |
| 2 | 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> |
| 3 | 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> |
| 4 | 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> |
| 5 | Which oxidation state will not shown by S |
<p>-2</p> <p>+4</p> <p>+8</p> <p>+2</p> |
| 6 | Element that can show variable oxidation states. |
<p>Mg</p> <p>Ca</p> <p>S</p> <p>Mg</p> |
| 7 | Oxidation state fo P in P4 O10 is. |
<p>+2</p> <p>+3</p> <p>+5</p> <p>+4</p> |
| 8 | Acidic chlorides have pH? |
<p>More than 7</p> <p>Less than 7</p> <p>Equal to 7</p> <p>May be any</p> |
| 9 | Acidic oxides are |
<p>Metallic oxides</p> <p>Non Metallic oxides</p> <p>Metalloid oxides</p> <p>All</p> |
| 10 | Select basic oxide. |
<p>MgO</p> <p>CO2</p> <p>SiO2</p> <p>Al2 O2</p> |
| 11 | Metallic oxides are...............in nature. |
<p>Acidic</p> <p>Basic</p> <p>Amphotric</p> <p>Depends upon oxide</p> |
| 12 | 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> |
| 13 | Which element is used in S.O.S flares and in firework. |
<p>Mg Powder</p> <p>Na powder</p> <p>CaCO3</p> <p>KO2</p> |
| 14 | Peroxides are those in whcih oxidation state of oxygen is |
<p>-1</p> <p>+2</p> <p>-2</p> <p>-1/2</p> |
| 15 | Metallic character increases |
<p>Downward and forward from left to ritht</p> <p>Upward and foward from left to right</p> <p>Downward and backward from rifht to lef</p> <p>Upward and backward from right to left</p> |
| 16 | Tendency to lose electrons called |
<p>metallic character</p> <p>Electron affinity</p> <p>Ioniztion energy</p> <p>Electrongativity</p> |
| 17 | Electronegativity value of "Cs" is |
<p>2.1</p> <p>0.79</p> <p>0.1</p> <p>4</p> |
