Ammonium dichromate is used in some fireworks. The green colored powder blown in the air is:

C r C O_{3}

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C r_{2} O_{3}

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C r

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C r O (O)_{2}

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Solution

The correct option is B $C r_{2} O_{3}$
Ammonium dichromate is used in some fireworks. The green-colored powder blown in the air is $C r_{2} O_{3}$ .

$(N H_{4})_{2} C r_{2} O_{7} ⟶ C r_{2} O_{3} (g r e e n) + N_{2} + 4 H_{2} O$

Option (B) is correct.

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(N H_{4})_{2} C r_{2} O_{7}

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