Solutions - CBSE Class 10 Sample Paper for 2022 Boards - Science [MCQ]

Class 10
Solutions to CBSE Sample Paper - Science Class 10

## (D) W, X, Z

Now,

• Metals can be beaten into thin sheets , this property of metals is called malleability .
• The ability of metals to be drawn into thin wires is called ductility .

A Cable Manufacturing company makes cables (thin wire). Thus, it needs

• Elements which are malleable
• Elements which are ductile
• Elements which conduct electricity
• And, elements which have high melting point

A cable manufacturing unit will discard elements with

• low malleability,
• low ductility
• low melting point.
• And it will also discard elements which don’t conduct electricity

From our options

• W cannot be discarded as it has all desired characteristics
• X is discarded because it is not malleable
• Y is discarded because it is not malleable
• Z is discarded because it does not conduct electricity

Hence, from this view elements X, Y, and Z should be discarded.

So, the correct answer is (b)

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