P Block Elements - Topic Wise Multiple Choice Questions (MCQ)
Topic Wise free P Block Elements MCQ for 11th 12th exam Practice Multiple Choice Questions and answer for JEE-mains State CET Engineering Entrance GATE free Online Test
6 )
Which one of the following is correct statement
The hydroxide of aluminium is more acidic than that of boron
The hydroxide of boron is basic, while that of aluminium is amphoteric
The hydroxide of boron is acidic, while that of aluminium is amphoteric ✔
The hydroxide of boron & aluminium are amphoteric
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7 )
Which of the following is most acidic
Na2O
Mgo
Al2O3 ✔
Cao
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8 )
AlCl3 is
Anhydrous & covalent ✔
Anhydrous & ionic
covalent & basic
coordinate & acidic
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9 )
Which of the following is an amphoteric oxide.
MgO
Al2O3 ✔
Cl2O7
Ti2O2
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10 )
Aluminium vessels should not be washed with materials containing washing soda since
Washing soda is expensive
Washing soda is easily decomposed
Washing soda reacts with aluminium to form soluble aluminate ✔
Washing soda reacts with aluminium to form insoluble aluminium oxide
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