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कथन : `sigma`-आबन्ध `pi-` आबन्ध की अपेक्षा अधिक प्रबल होता है ।
कारण : परमाणविक ऑर्बिटलों का अक्षीय अतिव्यापन पार्श्व अतिव्यापन की अपेक्षा अधिक होता है ।
A. यदि कथन तथा कारण दोनों सत्य है तथा कारण कथन का सही स्पष्टीकरण है ।
B. यदि कथन तथा कारण दोनों सत्य है तथा कारण कथन का सही स्पष्टीकरण नहीं है ।
C. यदि कथन सत्य है परन्तु कारण असत्य है ।
D. यदि कथन असत्य है परन्तु कारण सत्य है ।

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