1. Tardigrade
  2. Question
  3. Chemistry
  4. FeCr 2 O 4 (chromite) is a good source of chromium and its compounds like Na 2 CrO 4, Na 2 Cr 2 O 7 Questions are based on the following reactions P: FeCr 2 O 4+ NaOH + air arrow A+ Fe 2 O 3 Q: A+B arrow Na 2 Cr 2 O 7 R: Na 2 Cr 2 O 7+X xrightarrowΔ Cr 2 O 3 S: Cr 2 O 3+Y arrow Cr Compound (A) and (B) are

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. $FeCr _2 O _4$ (chromite) is a good source of chromium and its compounds like $Na _2 CrO _4, Na _2 Cr _2 O _7$ Questions are based on the following reactions
$P: FeCr _2 O _4+ NaOH +$ air $\rightarrow A+ Fe _2 O _3$
$Q: A+B \rightarrow Na _2 Cr _2 O _7$
R: $Na _2 Cr _2 O _7+X \xrightarrow{\Delta} Cr _2 O _3$
$S: Cr _2 O _3+Y \rightarrow Cr$
Compound $(A)$ and $(B)$ are

General Principles and Processes of Isolation of Elements

Solution:

Correct answer is (a) $Na _2 CrO _4, H _2 SO _4$