SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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C2H6
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PCl5
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Ca3N2
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SF2
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Detailed explanation-1: -Calcium nitride is the inorganic compound with the chemical formula Ca3N2. It exists in various forms (isomorphs), -calcium nitride being more commonly encountered. Unit cell containing 31 nitride ions (red) and 48 calcium ions (white). Each nitride is surrounded by six calcium, and each calcium by four nitride ions.
Detailed explanation-2: -Hence, the electronegativity difference between Ca and N is (3.0-1.0) or 2.0. Therefore, the bond between Ca and N is ionic. Hence, Ca3N2 C a 3 N 2 is an ionic compound.
Detailed explanation-3: -This video from Frankly Chemistry shows how the ionic bond forms in Calcium Phosphide (Ca3P2).
Detailed explanation-4: -Ionic compounds generally form between elements that are metals and elements that are nonmetals. For example, the metal calcium (Ca) and the nonmetal chlorine (Cl) form the ionic compound calcium chloride (CaCl2). In this compound, there are two negative chloride ions for each positive calcium ion.