An element X forms an oxide X₂O₃. In which group of Mendeleev's periodic table is this element placed?

(a) group II
(b) group III
(c) group V
(d) group VIII

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Solution

(b) Group III.
The element which forms the oxide X₂O₃ is placed in group 3 of the periodic table.

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Carbon, group (14) element in the Periodic Table, is known to form compounds with many elements. Write an example of a compound formed with
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Question 40
Carbon, group (14) element in the Periodic Table, is known to form compounds with many elements. Write an example of a compound formed with
(a) Chlorine (group 17 of Periodic Table)
(b) Oxygen (group 16 of Periodic Table)

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An element X forms an oxide X2O3. In which group of Mendeleev's periodic table is this element placed? (a) group II (b) group III (c) group V (d) group VIII

(b) Group III. The element which forms the oxide X2O3 is placed in group 3 of the periodic table.

An element X forms an oxide X₂O₃. In which group of Mendeleev's periodic table is this element placed?

(a) group II
(b) group III
(c) group V
(d) group VIII

(b) Group III.
The element which forms the oxide X₂O₃ is placed in group 3 of the periodic table.