The hardest of the following solids is__________________?

Related Mcqs:

One mole of CO2 contains?

A. 6.022 x 1023 atoms of oxygen B. 22-gram electrons C. 6.022 x 1023 atms of carbon D. both B. & C....

For which of the following compounds the term empirical formula cannot be applied ?

A. NaCl B. H2O C. CCI4 D. It can be applied to all mentioned above...

Which one of the following is not the mono isotopic element ?

A. arsenic B. uranium C. iodine D. nickel...

When methl iodide and ethyl iodide are treated with sodium metal possible major products are obtained ?

A. 1 B. 2 C. 3 D. 4...

Which of the following elements has greater 1st ionization energy__________________?

A. B B. C C. N D. O...