27. Which of the following pairs of elements shows amphoteric behaviour?1)al and ca2)pb and N3)be and b4)sn and zn
Answers 2
Answer:
Amphoteric oxides can behave as an acid as well as the base. They react with both acids and bases to form salts. Tin oxide although doesn't dissolve in water but it is amphoteric in nature. Zinc oxide is also amphoteric in nature.
ZnO+HCl→ZnCl
2
+H
2
O
ZnO+NaOH→Na
2
ZnO
2
+H
2
O
SnO
2
+HCl→SnCl
4
+H
2
O
SnO
2
+NaOH+H
2
O→Na
2
[Sn(OH)
6
]
Hence, option D is correct.
Explanation:
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Author:
junecarson
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0
Answer:
correct option is D
Explanation:
Amphoteric oxides can behave as an acid as well as the base. They react with both acids and bases to form salts. Tin oxide although doesn't dissolve in water but it is amphoteric in nature. Zinc oxide is also amphoteric in nature.
ZnO+HCl→ZnCl
2
+H
2
O
ZnO+NaOH→Na
2
ZnO
2
+H
2
O
SnO
2
+HCl→SnCl
4
+H
2
O
SnO
2
+NaOH+H
2
O→Na
2
[Sn(OH)
6
]
Hence, option D is correct.
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travis582
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