Question

When x gm carbon is burnt with y gm oxygen in a closed vessel, no residue is left behind. Which of the following statement is correct regarding the relative amounts of oxygen and carbon?
A. y/x must be less than 1.33
B. y/x must be equal to 1.33
C. y/x must be greater than 2.67
D. y/x must lie from 1.33 to 2.67

Answer 1

Correct Answer - 4
For maximum ratio
`C_((s))+O_(2(g))to CO_(2(g))`
`12 gm=x, 32 gm =y" " 32/12=8/3`
For minimum ratio
`C_((s))+1/2 O_(2(g)) to CO_((g))`
`12 g m " " 16 gm " " 16/12 =4/3`
`4/3 4/3 le y/x le 8/3`