Home
Class 12
CHEMISTRY
On addition of cone. H2SO4 to a chloride...

On addition of cone. `H_2SO_4` to a chloride salt, colourless fumes are evolved but in case of iodide salt, violet fumes come out. This is because ……...

A

`H_2SO_4` reduces HI to `I_2`

B

HI is of violet colour

C

HI gets oxidised to `I_(2)`

D

HI changes to `HIO_(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
`H_(2)SO_(4)` oxidising HI to `I_(2)`
`2Nal + H_(2)SO_(4) to Na_(2)SO_(4) + underset(2H_(2)O + SO_(2) + I_(2))underset(darr H_(2)SO_(4))(2HI)`
Promotional Banner

Topper's Solved these Questions

  • THE P-BLOCK ELEMENTS

    KUMAR PRAKASHAN|Exercise SECTION -D (NCERT EXEMPLAR SOLUTION) (MULTIPLE CHOICE QUESTIONS MCQS (MORE THAN ONE QUESTIONS))|10 Videos

  • THE P-BLOCK ELEMENTS

    KUMAR PRAKASHAN|Exercise SECTION -D (NCERT EXEMPLAR SOLUTION) (SHORT ANSWER TYPE QUESTIONS)|21 Videos

  • THE P-BLOCK ELEMENTS

    KUMAR PRAKASHAN|Exercise SECTION-C TEXTUAL EXERCISE|40 Videos

  • THE D-AND F-BLOCK ELMENTS

    KUMAR PRAKASHAN|Exercise Section -E MCQs asked in GUJCET/Board Exams)|50 Videos

  • THE SOLID STATE

    KUMAR PRAKASHAN|Exercise SECTION - E (MULTIPLE CHOICE QUESTIONS)(MCQs ASKED IN BOARD EXAMS)|35 Videos

Similar Questions

Explore conceptually related problems

In a cell that utilises the reaction. Zn(s) +2H^(+)(aq) rarr Zn^(2+) (aq) +H_(2)(s) addition of H_(2)SO_(4) to cathode compartement, will: (1) increase the E_(Cell) and shift equilibrium to the right (2) lower the E_(cell) and shift equilibrium to the right (3) lower the E_(cell) and shift equilibrium to the left (4) increase the E_(cell) and shift equilibrium to the left

0.80 g of a substance was digested with sulphuric acid and then distilled with an excess of caustic soda. The ammonia gas evolved was passed through 100 ml of 1N H_(2)SO_(4) . The excess of the acid required 80 ml of 1N caustic soda solution for its complete neutralisation. Calculate the percentage of nitrogen in the organic compound.

An experimental setup of verification of photoelectric effect is shown in the diagram. The voltage across the electrode is measured with the help of an ideal voltmetar, and which can be varied by moving jockey 'J' on the potentiometer wire. The battery used in potentiometer circuit is of 20 V and its internal resistance is 2omega . The resistance of 100 cm long potentiometer wire is 8 omega . The photo current is measured with the help of an ideal ammeter. Two plates of potassium oxide of area 50 cm^(2) at separation 0.5 mm are used in the vacuum tube. Photo current in the circuit is very small so we can treat potentiometer circuit an indepdent circuit. The wavelength of various colours is as follows : |{:("Light",underset("Violet")(1),underset("Blue")(2),underset("Green")(3),underset("Yellow")(4),underset("Orange")(5),underset("Red")(6)),(lambda "in" Årarr,4000-4500,4500-5000,5000-5500,5500-6000,6000-6500,6500-7000):}| When radiation falls on the cathode plate a current of 2muA is recorded in the ammeter. Assuming that the vecuum tube setup follows ohm's law, the equivalent resistance of vacuum tube operating in this case when jockey is at end P.

KUMAR PRAKASHAN-THE P-BLOCK ELEMENTS -SECTION -D (NCERT EXEMPLAR SOLUTION) (MULTIPLE CHOICE QUESTIONS (MCQS))
  1. On addition of cone. H2SO4 to a chloride salt, colourless fumes are ev...

    Text Solution

    |

  2. In qualitative analysis when H2S is passed through an aqueous solution...

    Text Solution

    |

  3. In a cyclotrimetaphosphoric acid molecule, how many single and double ...

    Text Solution

    |

  4. Which of the following elements can be involved in pn-dn bonding ?

    Text Solution

    |

  5. Which of the following pairs of ions are isoelectronic and isostructur...

    Text Solution

    |

  6. Affinity for hydrogen decreases in the group from fluorine to iodine. ...

    Text Solution

    |

  7. Bond dissociation enthalpy of E - H (E = element) bonds is given below...

    Text Solution

    |

  8. On heating with concentrated NaOH solution in an inert atmosphere of C...

    Text Solution

    |

  9. Which of the following acids forms three series of salts ?

    Text Solution

    |

  10. Strong reducing behaviour of H3PO2 is due to ...............

    Text Solution

    |

  11. On heating lead nitrate forms oxides of nitrogen and lead. The oxides ...

    Text Solution

    |

  12. Which of the following elements does not show allotropy ?

    Text Solution

    |

  13. Maximum covalency of nitrogen is.............

    Text Solution

    |

  14. Which of the following statements is wrong ?

    Text Solution

    |

  15. A brown ring is formed in the ring test for NOg ion. It is due to the ...

    Text Solution

    |

  16. Elements of group-15 form compounds in (+5) oxidation state. However, ...

    Text Solution

    |

  17. On heating ammonium dichromate and barium azide separately we get

    Text Solution

    |

  18. In the preparation of HNO3, we get NO gas by catalytic oxidation of am...

    Text Solution

    |

  19. The oxidation state of central atom in the anion of compound NaH2PO2 w...

    Text Solution

    |

  20. Which of the following is not tetrahedral in shape ?

    Text Solution

    |