निम्नलिखित अणुओं में सिग्मा \( (\sigma) \) तथा पाई \( (\pi) \) आबंधों की कुल संख्या कितनी है? (क...

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निम्नलिखित अणुओं में सिग्मा \( (\sigma) \) तथा पाई \( (\pi) \) आबंधों की कुल संख्या कितनी है? (क) \( \mathrm{C}_{2} \mathrm{H}_{2} \) (ख) \( \mathrm{C}_{2} \mathrm{H}_{4} \)
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