MPSC Rajyaseva 2021 GS Paper 1 — Question 65

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कॅल्शियम ऑक्साईड (CaO) ची स्टेबल् ऑक्टेट मिळविण्यासाठी : In CaO, so as to achieve the stable octate:

1)कॅल्शियमच्या अणू कडून दोन इलेक्ट्रॉन ऑक्सीजनच्या अणुस जातील / Ca atom transfer its two valence electrons to the same oxygen atom✓ Correct

2)कॅल्शियमच्या अणू कडून एक इलेक्ट्रॉन ऑक्सीजनच्या अणुस जातील / Ca atom transfer its one valence electron to the same oxygen atom

3)ऑक्सीजनच्या अणू कडून दोन इलेक्ट्रॉन कॅल्शियमच्या अणुस जातील / Oxygen atom transfer its two valence electrons to the same calcium atom

4)ऑक्सीजनच्या अणू कडून एक इलेक्ट्रॉन कॅल्शियमच्या अणुस जातील / Oxygen atom transfer its one valence electron to the same calcium atom

Calcium transfers its 2 valence electrons to Oxygen, forming an ionic bond where Calcium achieves a stable octet configuration (noble gas structure).

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