NEET 2021 Physics Question Paper with Answer Key PDF Code N4

NEET Questions

• 1.

  test

  • test

  • test

  View Solution

  ---

• 2.

  This is new question created.

  • answe 1

  • 9	9	9
    6	7	80
    4	3	2

  View Solution

  ---

• 3.

  Minority carriers in a $p-type$ semiconductor are

  

  • Holes
  • Free electrons
  • Both holes and free electrons
  • Neither holes nor free electrons
  View Solution

  ---

• 4.

  At a certain temperature in a 5 L vessel, 2 moles of carbon monoxide and 3 moles of chlorine were allowed to reach equilibrium according to the reaction,$CO + Cl_{2} <=> COCl_2 $ At equilibrium, if one mole of CO is present then equilibrium constant $(K_c)$ for the reaction is :

  • 2
  • 2.5
  • 3
  • 4
  View Solution

  ---

• 5.

  Penicillin was first discovered by

  • Alexander Fleming
  • Tence and Salke
  • S.A. Waksman
  • Louis Pasteur
  View Solution

  ---

• 6.

  A colourless, neutral, paramagnetic oxide of Nitrogen $'P'$ on oxidation gives reddish brown gas $Q$. $Q$ on cooling gives colourless gas $R$. $R$ on reaction with P gives blue solid $S$. Identify $P , Q , R , S$, respectively

  

  • $N _{2} O\, NO\, NO _{2} \,N _{2} O _{5}$
  • $N _{2} O\, NO _{2}\, N _{2} O _{4} \,N _{2} O _{3}$
  • $NO \,NO _{2} \,N _{2} O _{4}\, N _{2} O _{3}$
  • $NO \,NO\, N _{2} O _{4} \,N _{2} O _{5}$
  View Solution