Self Studies
Self Studies
Self Studies
Self Studies

Redox Reactions...

TIME LEFT -
  • Question 1
    4 / -1

     

    Consider the following reactions.
    I. Zn + dil. H2So4 → ZnSO4 + H2
    II. Zn + conc. H2SO4 → ZnSO4 + SO4 + H2O
    III. Zn + HNO3 → Zn(NO3)2 + H2O + NH4NO3

    Q.  Oxidation number of H changes in: 

     

  • Question 2
    4 / -1

    In which case change of oxidation number of V is maximum? 

  • Question 3
    4 / -1

    In which of the following set of compounds oxidation number of oxygen is not (- 2)?

  • Question 4
    4 / -1

    Which is chlorate (I) ion?

  • Question 5
    4 / -1

    Which of the following is not an example of redox reaction?

  • Question 6
    4 / -1

    Which of the following atom has been assigned only single oxidation number?

  • Question 7
    4 / -1

    The oxidation number of P in Ba(H2PO2)2, Ba(H2PO3)2 and Ba(H2PO4)2 are respectively

  • Question 8
    4 / -1

    the oxidation number of sulphur in S8,S2F2,H2S respectively are

  • Question 9
    4 / -1

    In which of the following reactions oxidation number of chromium has been affected?

  • Question 10
    4 / -1

    Prussian blue is represented by KFex[Fe(CN)6]. Value of x is

  • Question 11
    4 / -1

    In the following reaction, , oxidation number of

  • Question 12
    4 / -1

    Select the set of compounds having fractional oxidation number in one or more atoms.

  • Question 13
    4 / -1

     

    Oxidation states of the metal in the minerals haematite and magnetite, respectively are:

     

  • Question 14
    4 / -1

    Oxidation numbers of P in PO4−3, of S in SO42− and that of Cr in Cr2O72− are respectively,

  • Question 15
    4 / -1

    Direction (Q. Nos. 15-16) This section contains  a paragraph, wach describing theory, experiments, data etc. three Questions related to paragraph have been given.Each question have only one correct answer among the four given options (a),(b),(c),(d)

    The complex [Fe(H2O)5NO]2+ is formed in the ring-test for nitrate ion when freshly prepared FeSO4 solution is added to aqueous solution of followed by the addition of conc. H2SO4. NO exists as NO+ (nitrosyl).

    Q.Oxidation number of the Fe in the ring is

  • Question 16
    4 / -1

    The complex [Fe(H2O)5NO]2+ is formed in the ring-test for nitrate ion when freshly prepared FeSO4 solution is added to aqueous solution of followed by the addition of conc. H2SO4. NO exists as NO+ (nitrosyl).

    Q. Magnetic moment  of Fe in the ring is 

  • Question 17
    4 / -1

    Direction (Q. Nos. 17) Choice the correct combination of elements and column I and coloumn II are given as option (a), (b), (c) and (d), out of which ONE option is correct.

    Match the compounds/ions having underlined atoms of different oxidation number (in Column I) with values (in Column II).



  • Question 18
    4 / -1

     

    Which of the following sequence is correct with reference to the oxidation number of iodine?

     

  • Question 19
    4 / -1

    The difference in the oxidation number of the two types of sulphur atoms in Na2S4O6 is _________. [HTJEE2011]

Submit Test
Self Studies
User
Question Analysis

  • Answered - 0

  • Unanswered - 19

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
Submit Test
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now