SATHEE: Transition and InnerTransition Elements

Transition and InnerTransition Elements - Result Question 152

####52. Statement I To a solution of potassium chromate if a strong acid is added, it changes its colour from yellow to orange.

Statement II The colour change is due to the change in oxidation state of potassium chromate.

(1988, 2M)

Fill in the Blanks

Show Answer

Answer:

Correct Answer: 52. (c)

Solution:

Statement $I$ is true but Statement II is false :

$\underset{Yellow}{K_{2} C r O_{4}} + H_{2} S O_{4} ⟶ \underset{Orange}{K_{2} C r_{2} O_{7}} + K_{2} S O_{4} + H_{2} O$

In both $K_{2} C r O_{4}$ and $K_{2} C r_{2} O_{7}$ , chromium is in +6 oxidation state.

Privacy Policy

Powered by Prutor@IITK

sathee@iitk.ac.in

Media coverage of SATHEE

Play Store

App Store

Ask SATHEE

Welcome to SATHEE !
Select from 'Menu' to explore our services, or ask SATHEE to get started. Let's embark on this journey of growth together! 🌐📚🚀🎓

I'm relatively new and can sometimes make mistakes.
If you notice any error, such as an incorrect solution, please use the thumbs down icon to aid my learning.
To begin your journey now, click on "I understand".

Transition and InnerTransition Elements - Result Question 152

Fill in the Blanks

Answer:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

Menu