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Question

NX is produced by the following step of reactions M + X2MX2MX2+X2M3X8 M3X8+N2CO3NX +CO2+M3O4 How much M (metal) is consumed to produce 206 gm of NX. (Take at wt. of M = 56, N = 23, X = 80)


A

42 g

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B

56 g

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C

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D

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Solution

The correct option is A

42 g


M+X2MX2

n mole nmole

3MX2+X2M3X8

nmole n8 mole

M3X8+N2CO38NX+4CO2+M3O4

n3 8n3 mole

No. of moles of NX to be produced =206103=2mole

8n3 34

Mass of M = 34×56 =42gm


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