JEE Main 2020 — D And F Block Elements Question with Solution
From: JEE Main 2020 (Online) 7th January Evening Slot
Question
Consider the following reactions :
(A) + side products
(A) + NaOH (B) + Side products
(C) + Side products
The sum of the total number of atoms in one molecule each of (A) and (B) and (C) is
(A) + side products
(A) + NaOH (B) + Side products
(C) + Side products
The sum of the total number of atoms in one molecule each of (A) and (B) and (C) is
Enter your answer
Show full solutionCorrect answer: 18
Correct answer
18
Step-by-step explanation
2CrO2Cl2(A) + 4NaHSO4 + 2KHSO4 + 3H2O
CrO2Cl2(A) + 4NaOH Na2CrO4(B) + 2NaCl + 2H2O
Na2CrO4(B) + 2H2SO4 + 2H2O2
CrO5(C) + 2NaHSO4 + 3H2O
A = CrO2Cl2
B = Na2CrO4
C = CrO5
Total number of atom in A + B + C = 18
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