Question

Name the following
Metal  which  forms  an  amphoteric  oxide.
An Alloy of Copper and Zinc
A compound which is added to lower the fusion temperature of an electrolytic bath in extraction of aluminium
A metal which does not react with cold water but reacts with stream
A common ore of aluminium

MSCERT Class 10 General Science Ch8 Understanding Metals and Non Metals

Answer 1

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✓Metal which forms an amphoteric oxide known as " Aluminium "

✓ An alloy of zinc and copper known as " Brass "

✓ A compound which is added to lower the fusion temperature of an electrolytic bath in extraction of aluminium known as "cryolite".

✓ A metal which does not react with cold water but reacts with stream is " Aluminium "

✓ A common ore of aluminium is " Bauxite "

Answer 2

Answer:

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