<p>Number of possible position isomers for dichlorobenzene is</p>

<p><span style="background-color:transparent;color:#000000;font-family:default(Arial);">Name the process of formation of soil.</span></p>

<p><span style="font-family:default(Arial);">Name the horizon of soil that is rich in humus.</span></p>

<p><span style="font-family:default(Arial);">How many types of layers are present in the soil?</span></p>

<p><span style="font-family:default(Arial);">_____ is made up of small lumps of rocks with cracks and crevices.</span></p>

<figure class="table" style="width:600px;"><table><tbody><tr><td>S.No.</td><td>LIST-I<br>Colour</td><td>S.No.</td><td>LIST-2<br>compound</td></tr><tr><td>A)</td><td>Prussian blue</td><td>P)</td><td><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced separators="|" close="]" open="["><mrow><mi>Fe</mi><mo>(</mo><mi>CN</mi><msub><mo>)</mo><mn>5</mn></msub><mi>NOS</mi></mrow></mfenced><mrow><mn>4</mn><mo>−</mo></mrow></msup></math></td></tr><tr><td>B)</td><td>Violet</td><td>Q)</td><td><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>Fe</mi><mn>4</mn></msub><msub><mfenced separators="|" close="]" open="["><mrow><mi>Fe</mi><mo>(</mo><mi>CN</mi><msub><mo>)</mo><mn>6</mn></msub></mrow></mfenced><mn>3</mn></msub></math></td></tr><tr><td>C)</td><td>Blood red</td><td>R)</td><td><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>[</mo><mi>Fe</mi><mo>(</mo><mi>SCN</mi><mo>)</mo><msup><mo>]</mo><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></td></tr><tr><td>D)</td><td>White ppt</td><td>S)</td><td><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>AgCl</mi></math></td></tr></tbody></table></figure><figure class="table" style="width:600px;"><table><tbody><tr><td>&nbsp;</td><td>A</td><td>B</td><td>C</td><td>D</td></tr><tr><td>1</td><td>S</td><td>P</td><td>R</td><td>Q</td></tr><tr><td>2</td><td>R</td><td>P</td><td>Q</td><td>S</td></tr><tr><td>3</td><td>P</td><td>Q</td><td>R</td><td>S</td></tr><tr><td>4</td><td>Q</td><td>P</td><td>R</td><td>S</td></tr></tbody></table></figure>

Number of possible position isomers for dichlorobenzene is

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