Arrange the following in the order of increasing mass. (Atomic mass of&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mtext>O</mtext><mo>=</mo><mn>16</mn><mtext>u</mtext><mo>,</mo><mtext>  Cu</mtext><mo>=</mo><mn>63</mn><mtext>u</mtext><mo>,</mo><mtext>  N</mtext><mo>=</mo><mn>14</mn><mtext>u</mtext></math>&nbsp;)I) One atom of oxygen&nbsp;&nbsp;&nbsp; II) one atom of nitrogen &nbsp; &nbsp;III) &nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mn>1</mn><mo>×</mo><msup><mn>10</mn><mrow><mo>−</mo><mn>10</mn></mrow></msup></math>&nbsp; mole of oxygen gas&nbsp;&nbsp;&nbsp; IV)&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mn>1</mn><mo>×</mo><msup><mn>10</mn><mrow><mo>−</mo><mn>10</mn></mrow></msup></math>&nbsp;mole of copper

Which  of the following is a constellation 

Fill in the omitted part with the appropriate option.One of the most famous constellations which can be seen during summer in the early part of the night is Ursa Major. It is the collection of _______ planets.

Which of the following sketches represents the constellation Leo Major?

Match column I(reaction) with column II(type of redox reaction)<figure class="table" style="width:px;"><table><tbody><tr><td>&nbsp;</td><td>column I</td><td>&nbsp;</td><td>Column II</td></tr><tr><td>A</td><td>F2 + H2O<math class="wrs_chemistry" xmlns="http://www.w3.org/1998/Math/MathML"><mo>→</mo></math>HF + O2</td><td>I</td><td>decomposition non redox reaction</td></tr><tr><td>B</td><td>PCl3+Cl2<math class="wrs_chemistry" xmlns="http://www.w3.org/1998/Math/MathML"><mo>→</mo></math>PCl5</td><td>II</td><td>disproportionation reaction</td></tr><tr><td>C</td><td>2NaHCO3<math class="wrs_chemistry" xmlns="http://www.w3.org/1998/Math/MathML"><mo>→</mo></math>Na2CO3+H2O+CO2</td><td>III</td><td>combination redox reaction</td></tr><tr><td>D</td><td>4HNO3<math class="wrs_chemistry" xmlns="http://www.w3.org/1998/Math/MathML"><mover><mo>→</mo><mi>heat</mi></mover></math>2H2O+4NO2+O2</td><td>IV</td><td>displacement of nonmetal other than hydrogen by another non metal</td></tr><tr><td>&nbsp;</td><td>&nbsp;</td><td>V</td><td>decomposition &nbsp;redox reaction</td></tr></tbody></table></figure>

Arrange the following in the order of increasing mass. (Atomic mass of $O = 16 u, Cu = 63 u, N = 14 u$ )
I) One atom of oxygen II) one atom of nitrogen III) $1 \times 10^{- 10}$ mole of oxygen gas IV) $1 \times 10^{- 10}$ mole of copper

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Arrange the following in the order of increasing mass. (Atomic mass of O=16u, Cu=63u, N=14u )I) One atom of oxygen II) one atom of nitrogen III) 1×10−10 mole of oxygen gas IV) 1×10−10 mole of copper

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Arrange the following in the order of increasing mass. (Atomic mass of $O = 16 u, Cu = 63 u, N = 14 u$ )
I) One atom of oxygen II) one atom of nitrogen III) $1 \times 10^{- 10}$ mole of oxygen gas IV) $1 \times 10^{- 10}$ mole of copper