Which of the following materials does not have covalent bonds ?

Related Mcqs:

The co-ordination number of a simple cubic structure is______________?

A. 2 B. 4 C. 6 D. 8...

By increasing impurity content in the metal alloy the residual resistivity always_____________?

A. decreases B. increases C. remains constant D. becomes temperature independent...

Thermonic emission occurs in______________?

A. vacuum tubes B. copper conductors C. ferrite cores D. transistors...

Steel wire is used as____________?

A. overhead telephone wire B. earth wire C. core wire of ACSR D. all of the above...

Due to which of the following fact, in India, aluminium is replacing copper ?

A. Aluminium is more ductile and malleable than copper B. Aluminium is available in plenty, cheaper and lighter than copper C. Aluminium has lower resistivity than that of copper D. Aluminium has less temperature co-efficient than copper...