D. (a) Why is ZnO called amphoteric oxide? Name another amphoteric oxide.
(6) What are alkalis? Give example of alkali.
(c) Name an alloy of aluminium used in construction of aircrafts.
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6
Answer:
a) zno react with both acid and base to form salt and water
another amphoteric oxide is aluminium and lead oxide.
6) alkalis are water soluble bases ex. koh and Noah
c) megnox
Answered by
2
Answer:
★zno is a amhotheric oxide because it reacts both with acid and base to give out the the respective salt and water eg al2o3
★alkalis are bases which are soluble in water
★Duralumin
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