Question:
Which one of the following molecules contains two 'sigma' ($\sigma$) bonds and two 'pi' ($\pi$) bonds? ________.
Which one of the following molecules contains two 'sigma' ($\sigma$) bonds and two 'pi' ($\pi$) bonds? ________.
Show Hint
Double bond $= 1\sigma + 1\pi$; Triple bond $= 1\sigma + 2\pi$.
Updated On: Jun 26, 2026
- $O_{2}$
- $N_{2}$
- $C_{2}H_{2}$
- $CO_{2}$
- CO
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Concept
Identify the bonding structure of each molecule.
Step 2: Meaning
$CO_2$ structure: $O=C=O$. Each double bond consists of one $\sigma$ and one $\pi$ bond.
Step 3: Analysis
Total bonds in $CO_2 = 2 \sigma + 2 \pi$. ($C_2H_2$ has $3\sigma + 2\pi$; $N_2$ has $1\sigma + 2\pi$) .
Step 4: Conclusion
$CO_2$ is the correct molecule. Final Answer: (D)
Identify the bonding structure of each molecule.
Step 2: Meaning
$CO_2$ structure: $O=C=O$. Each double bond consists of one $\sigma$ and one $\pi$ bond.
Step 3: Analysis
Total bonds in $CO_2 = 2 \sigma + 2 \pi$. ($C_2H_2$ has $3\sigma + 2\pi$; $N_2$ has $1\sigma + 2\pi$) .
Step 4: Conclusion
$CO_2$ is the correct molecule. Final Answer: (D)
Was this answer helpful?
0
0
Top KEAM Chemistry Questions
- The pH of a solution obtained by mixing 60 mL of 0.1 M BaOH solution at 40m of 0.15m HCI solution is
- $4\, g$ of copper was dissolved in concentrated nitric acid. The copper nitrate solution on strong heating gave $5\, g$ of its oxide. The equivalent weight of copper is :
- Green chemistry deals with
- Neopentyl bromide undergoes dehydrohalogenation to give alkenes even though it has no $\beta$- hydrogen. This is due to
- Plot of $ log\text{ }x/m $ against log $p$ is a straight line inclined at an angle of $ 45{}^\circ $ . When the pressure is $ 0.5 \,arm $ and Freundlich parameter. $ k $ is $ 10 $ , the amount of solute adsorbed per gram of adsorbent will be $ (log\text{ }5=0.6990) $
View More Questions
Top KEAM Bond Parameters Questions
Top KEAM Questions
- i.$\quad$ They help in respiration ii.$\quad$ They help in cell wall formation iii.$\quad$ They help in DNA replication iv. $\quad$They increase surface area of plasma membrane Which of the following prokaryotic structures has all the above roles?
- A body oscillates with SHM according to the equation (in SI units), $x = 5 cos \left(2\pi t +\frac{\pi}{4}\right) .$ Its instantaneous displacement at $t = 1$ second is
- The pH of a solution obtained by mixing 60 mL of 0.1 M BaOH solution at 40m of 0.15m HCI solution is
Kepler's second law (law of areas) of planetary motion leads to law of conservation of
- If $\int e^{2x}f' \left(x\right)dx =g \left(x\right)$, then $ \int\left(e^{2x}f\left(x\right) + e^{2x} f' \left(x\right)\right)dx =$
View More Questions