Home
Class 12
CHEMISTRY
In an acidic medium dichromate ion oxidi...

In an acidic medium dichromate ion oxidises ferrous ion to ferric ion. If the gram molecular mass of potassium dichromate is 294 g, its gram equivalent mass is........ Grams.

A

`294`

B

`127`

C

`49`

D

`24.5`

Text Solution

Verified by Experts

The correct Answer is:
C
In acidic medium,
`underset(("O.N. of Cr=6"))(Cr_(2)O_(7)^(2-))+14H^(+) to underset(("O.N. of Cr=3"))(2C^(3+)+7H_(2))O-6e^(-)`
Eq. mass of `K_(2)Cr_(2)O_(7)` in acidic medium
`=("molecular mass")/(6) = (294)/(6) = 49`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    DINESH PUBLICATION|Exercise SELECTED STRIGHT OBJECTIVE TYPE MCQs|42 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    DINESH PUBLICATION|Exercise LINKED COMPREHENSION TYPE MCQs|12 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    DINESH PUBLICATION|Exercise ULTIMATE PREPARATORY PACKAGE|20 Videos

  • SOLUTIONS

    DINESH PUBLICATION|Exercise ULTIMATE PREPARATORY PACKAGE|10 Videos

  • SURFACE CHEMISTRY

    DINESH PUBLICATION|Exercise BRAIN STORMING MULTIPLE CHOICE QUESTIONS (MCQs)|8 Videos

Similar Questions

Explore conceptually related problems

How many molecules are present in one gram molecular mass of a substance ?

What is gram molecular mass ? Give one example.

Knowledge Check

  • In acidic medium, dichromate ion oxidises ferrous ion to ferric ion. If the gra molecular weight of potassium dichromate is 294 grams, its gra equivalent weight is . . . . Grams

    A
    294
    B
    127
    C
    49
    D
    24.5

  • In acidic medium, dichromate ion oxidizes ferrous ion to ferric ion. If the gram molecular weight of potassium dichromate is 294 g , is gram equivalent weight is "______" g .

    A
    ` 294`
    B
    ` 127`
    C
    `49`
    D
    ` 24.5`

  • Gram molecular mass of CH_4 is

    A
    16 g
    B
    16 u
    C
    32 g
    D
    32 u

    • Similar Questions

    Explore conceptually related problems

    " How many moles of formic acid oxidised by one mole of potassium dichromate in hot acidic medium? "

    Stricly speaking the term gram molecular mass cannot be applied for

    Dichromate ions in alkaline medium exist as

    The molecular mass of KMnO_(4) is M. Its equivalent mass in acidic medium will be :

    Potassium dichromate is a good oxidising agent in acidic medium the oxidation state of chromium changes by

    Home
    Profile