Which of the following elements forms acidic oxide and shows diagonal relationship with silicon?
Correct answer: D. B
- A. Th
- B. Al
- C. In
- D. B
Explanation
Boron forms boron oxide (B2O3), which is an acidic oxide and it also shows a diagonal relationship with Si. Therefore, option D is correct. Thorium, aluminum, and indium do not meet both criteria, making them incorrect choices.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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