NEET 2021 Physics Question Paper with Answer Key PDF Code M6

NEET Questions

• 1.

  Which of the following is not true for oxidation?

  • addition of oxygen
  • addition of electronegative element
  • removal of hydrogen
  • removal of electronegative element
  View Solution

  ---

• 2.

  A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an insulating handle. As a result the potential difference between the plates

  • increases
  • decreases
  • does not change
  • becomes zero
  View Solution

  ---

• 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

  

  • $\ce{\frac{1}{300} \,s}$
  • $\ce{\frac{1}{600} \,s}$
  • $\ce{\frac{1}{500} \,s}$
  • $\ce{\frac{1}{200} \,s}$
  View Solution

  ---

• 4.

  Minority carriers in a $p-type$ semiconductor are

  

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

  ---

• 5.

  The reagent which can do the conversion $CH _{3} COOH \longrightarrow CH _{3}- CH _{2}- OH $ is

  

  • $LiAIH_4$ / ether
  • $H_2, Pt$
  • $NaBH_4$
  • $Na$ and $C_2H_5OH$
  View Solution

  ---

• 6.

  An example of a psychedilic agent is

  • DNA
  • LSD
  • DDT
  • TNT
  View Solution