F eCr 2 O 4- NaOH - air - A - F e 2 O 3A -B N a 2 Cr 2 07Na 2 Cr 2 O 7 X - Cr 2 O 3Cr 2 O 3- Y - CrX and Y areA- C in bothB- Al in bothC- AI and CD- C and AI

The correct option is D C and AIFeCr_2O_4 + NaOH + air → (A)+Fe_2O_3 (A) + (B) → Na_2Cr_207 Na_2 Cr_2 O_7 + X Cr_2 O_3 Cr_2O_3 ...

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Enthalpy of Combustion

F eCr 2 O 4+ ...

Question

$F e C r_{2} O_{4} + N a O H + a i r \to (A) + F e_{2} O_{3}$
$(A) + (B) \to N a_{2} C r_{2} 07$
$N a_{2} C r_{2} O_{7} + X Δ - \to C r_{2} O_{3}$
$C r_{2} O_{3} + Y Δ - \to C r$
(X) and (Y) are

C in both

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Al in both

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C and AI

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AI and C

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Solution

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Similar questions

F e C r_{2} O_{4} + N a O H + a i r \to (A) + F e_{2} O_{3}

(A) + (B) \to N a_{2} C r_{2} 07

N a_{2} C r_{2} O_{7} + X Δ - \to C r_{2} O_{3}

C r_{2} O_{3} + Y Δ - \to C r

A_{i}

| x - a_{i} | + | y | = b_{i}, i \in N,

a_{i + 1} = a_{i} + \frac{3}{2} b_{i}

b_{i + 1} = \frac{b_{i}}{2}, a_{1} = 0, b_{1} = 32,

If the matrix A is both symmetric and skew symmetric, then

A. A is a diagonal matrix

B. A is a zero matrix

C. A is a square matrix

D. None of these

I O_{3}^{-} + a I^{-} + b H^{+} \to c H_{2} O + d I_{2}

a, b, c

d

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