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Class 10 Chemistry (India)

Course: Class 10 Chemistry (India) > Unit 5

Lesson 5: Periodic trends in metallic and nonmetallic characters

Formula of ionic and covalent compounds

Element start text, Z, end text forms oxide with the formula start text, Z, end text, start subscript, 2, end subscript, start text, O, end text, start subscript, 3, end subscript, an ionic compound.

What would be the formula of start text, Z, end text with phosphate (start text, P, O, end text, start subscript, 4, end subscript, start superscript, 3, minus, end superscript)?

(Choice A)
start text, Z, end text, start subscript, 3, end subscript, left parenthesis, start text, P, O, end text, start subscript, 4, end subscript, right parenthesis, start subscript, 2, end subscript
(Choice B)
start text, Z, end text, start subscript, 2, end subscript, left parenthesis, start text, P, O, end text, start subscript, 4, end subscript, right parenthesis, start subscript, 3, end subscript
(Choice C)
start text, Z, end text, start text, P, O, end text, start subscript, 4, end subscript
(Choice D)
start text, Z, end text, start subscript, 2, end subscript, start text, P, O, end text, start subscript, 4, end subscript

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Class 10 Chemistry (India)

Course: Class 10 Chemistry (India) > Unit 5

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