2. Sample Papers
  3. KVPY

KVPY Sample Paper KVPY Stream-SX Model Paper-15

  • question_answer
    Concentrated nitric acid upon long standing, turns yellow-brown due to the formation of

    A) NO

    B) \[N{{O}_{2}}\]

    C) \[{{N}_{2}}O\]

    D) \[{{N}_{2}}{{O}_{4}}\]

    Correct Answer: B

    Solution :

    \[N{{O}_{2}}\]is a brown coloured gas and imparts this colour to concentrated \[HN{{O}_{3}}\]during long standing. \[4HN{{O}_{3}}\xrightarrow{{}}2{{H}_{2}}O+2N{{O}_{2}}+3{{O}_{2}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner