Pick out the wrong statement.

Question

Options:

A . Pure rubber is as useless as pure gold as a material of construction

B . Thermal conductivity of aluminium is higher than that of copper; hence it is increasingly used for utensil making

C . Copper has poor weldability

D . Reinforced plastics are made from both thermoplastic as well as thermosetting plastics

Answer: Option B

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Question 7. Reduction in the grain size reduces the __________ of the material.....

Question 8. The 'bomb' in the bomb calorimeter is made of....

Question 9. Which of the following crystal structures characterises the ferritic stainless steel?....

Question 10. __________ is used for determining the tensile strength of steels.....

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