MCQ
Which of the following contain maximum number of carbon atoms?
- A$15\, gm$ ethane, $C_2H_6$
- B$40.2\, gm$ sodium oxalate, $Na_2C_2O_4$
- C$72\, gm$ glucose, $C_6H_{12}O_6$
- ✓$35\, gm$ pentene, $C_5H_{10}$
✓
Answer
Correct option: D.
$35\, gm$ pentene, $C_5H_{10}$
d
$\mathrm{C}_{2} \mathrm{H}_{6} \Rightarrow \frac{15}{30} \times \mathrm{N}_{\mathrm{A}} \times 2=\mathrm{N}_{\mathrm{A}}\, \mathrm{C}$ -atoms
$\mathrm{C}_{2} \mathrm{H}_{6} \Rightarrow \frac{15}{30} \times \mathrm{N}_{\mathrm{A}} \times 2=\mathrm{N}_{\mathrm{A}}\, \mathrm{C}$ -atoms
$\mathrm{Na}_{2} \mathrm{C}_{2} \mathrm{O}_{4} \Rightarrow \frac{40.2}{134} \times \mathrm{N}_{\mathrm{A}} \times 2=0.6\, \mathrm{N}_{\mathrm{A}} \,\mathrm{C}$ -atoms
$\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} \Rightarrow \frac{72}{180} \times \mathrm{N}_{\mathrm{A}} \times 6=2.4\, \mathrm{N}_{\mathrm{A}} \,\mathrm{C}$ -atoms
$\mathrm{C}_{5} \mathrm{H}_{10} \Rightarrow \frac{35}{70} \times \mathrm{N}_{\mathrm{A}} \times 5=2.5\,\mathrm{N}_{\mathrm{A}}\, \mathrm{C}$ -atoms
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