A compound showing following character(I) It imparts apple green color to flame(II) Its solution does not give precipitate on passing H2S(III) When it is heated with K2Cr2O7 and conc. H2 SO4, a red gas is involved. The gas when passes in aqueous NaOH solution turn it yellow. The compound is

2BaCl2(B)+K2Cr2O7+3H2SO4→2CrO2Cl2(Red)↑+K2SO4+2BaSO4+3H2OCrO2Cl2+4NaOH→Na2CrO4(yellow so in).+2NaCl+2H2O

A compound showing following character(I) It imparts apple green color to flame(II) Its solution does not give precipitate on passing H2S(III) When it is heated with K2Cr2O7 and conc. H2 SO4, a red gas is involved. The gas when passes in aqueous NaOH solution turn it yellow. The compound is

2BaCl2(B)+K2Cr2O7+3H2SO4→2CrO2Cl2(Red)↑+K2SO4+2BaSO4+3H2OCrO2Cl2+4NaOH→Na2CrO4(yellow so in).+2NaCl+2H2O

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A compound showing following character
(I) It imparts apple green color to flame
(II) Its solution does not give precipitate on passing H₂S
(III) When it is heated with $K_{2} C r_{2} O_{7}$ and $c o n c . H_{2} S O_{4}$ , a red gas is involved. The gas when passes in aqueous NaOH solution turn it yellow.
The compound is

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$B a C l_{2}$

$C a C l_{2}$

$B a C O_{3}$

$S r C l_{2}$

answer is A.

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Detailed Solution

$\underset{(B)}{2 B a C l_{2}} + K_{2} C r_{2} O_{7} + 3 H_{2} S O_{4} \to \underset{(Re d)}{2 C r O_{2} C l_{2}} ↑ + K_{2} S O_{4} + 2 B a S O_{4} + 3 H_{2} O$

$C r O_{2} C l_{2} + 4 N a O H \to \underset{(y e l l o w s o i n) .}{N a_{2} C r O_{4}} + 2 N a C l + 2 H_{2} O$

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A compound showing following character(I) It imparts apple green color to flame(II) Its solution does not give precipitate on passing H2S(III) When it is heated with K2Cr2O7 and conc. H2 SO4, a red gas is involved. The gas when passes in aqueous NaOH solution turn it yellow. The compound is

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