p-Block Elements Questions (NEET, JEE Main) – Test 7

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1. Question 1 of 5

   1. Question

   4 points

   Which statement is NOT correct about fullerene C₆₀? [MH-CET 2014]

   • (A) It contains 20 six membered rings and 12 five membered rings
   • (B) All carbon atoms undergo SP² hybridization
   • (C) A six membered ring is fused with six membered rings only
   • (D) A five membered ring is fused with six membered ring only
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2. Question 2 of 5

   2. Question

   4 points

   Density of carbon monoxide is maximum at [Karnataka CET 2014]

   • (A) 2 atm and 600 K
   • (B) 0.5 atm and 273 K
   • (C) 6 atm and 1092 K
   • (D) 4 atm and 500 K
   Correct
   

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3. Question 3 of 5

   3. Question

   4 points

   For the properties mentioned, the correct trend for the different species is in [Karnataka CET 2014]

   • (A) strength as Lewis acid – BCl₃ > AlCl₃ > GaCl₃
   • (B) inert pair effect – Al > Ga > In
   • (C) oxidising property – Al⁺³ > In⁺³ > Tl⁺³
   • (D) first ionization enthalpy – B > Al > Tl
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4. Question 4 of 5

   4. Question

   4 points

   What is the geometry of molecule of bromine penta fluoride ? [MH-CET 2014]

   • (A) square planar
   • (B) trigonal bipyramidal
   • (C) square pyramidal
   • (D) octahedral
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5. Question 5 of 5

   5. Question

   4 points

   Oxidation number of nitrogen in which among the oxides of nitrogen is the lowest? [MH-CET 2014]

   • (A) Nitric oxide
   • (B) Nitrous oxide
   • (C) Nitrogen dioxide
   • (D) Nitrogen trioxide
   Correct
   

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