NEET 2021 Physics Question Paper with Answer Key PDF Code N2

NEET Questions

• 1.

  Noradrenaline is a /an

  • Neurotransmitter
  • Antidepressant
  • Antihistamine
  • Antacid
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• 2.

  Conjugate acid of $SO_4^{2-}$ is

  • $HSO^-_4$
  • $HSO_4$
  • $H_2SO_4$
  • $SO^{2-}_4$
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• 3.

  A coil of inductive reactance $1/ \sqrt{3}\, O$ and resistance $1 \, \Omega$ is connected to a $200\, V$, $50\,Hz \,A.C.$ supply. The time lag between maximum voltage and current is

  

  • $\ce{\frac{1}{300} \,s}$
  • $\ce{\frac{1}{600} \,s}$
  • $\ce{\frac{1}{500} \,s}$
  • $\ce{\frac{1}{200} \,s}$
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• 4.

  This is new question created.

  • answe 1

  • 9	9	9
    6	7	80
    4	3	2

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• 5.

  Minority carriers in a $p-type$ semiconductor are

  

  • Holes
  • Free electrons
  • Both holes and free electrons
  • Neither holes nor free electrons
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• 6.

  Write a balanced equation for the reaction of molecular nitrogen (N₂) and oxygen (O₂) to form dinitrogen pentoxide. \((f(x)=x^2)\)

  • N₂ + O₂ → N₂O₅ (unbalanced equation)
  • 2N₂ + 5O₂ → 2N₂O₅
  • option 3
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