Class 12 Chemistry d-and f-Block Elements Compounds of Transitional elements

Medium

In the reaction $4K_2Cr_2O_7 \xrightarrow{\text{heat}} 4K_2CrO_4 + 3O_2 + X$,the species $X$ is:

A
$CrO_3$
B
$Cr_2O_7$
C
$Cr_2O_3$
D
$CrO_5$

Explore More

Browse All

Question Bank

All Subjects

Class 12 Questions

Class 12

Chemistry Questions

Chapter

d-and f-Block Elements

Subtopic

Compounds of Transitional elements

Similar Questions

What are the oxidation states of iron in the minerals hematite and magnetite?

Medium

The orange colour of $K_2Cr_2O_7$ and purple colour of $KMnO_4$ is due to

DifficultJEE MAIN 2024

$MnO^{-}_4$ is of intense pink colour,though $Mn$ is in $(+7)$ oxidation state,it is due to

Difficult

What is the use of potassium permanganate $(KMnO_4)$?

Easy

Which of the following is the green coloured powder produced when ammonium dichromate is used in fireworks?

Medium

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.