MCQs || B21

amorphous – having no regular structure

Why do ionic compounds usually melt at several hundred degrees

C6H12O6

C 2 H 5 OH

NO

SiO2

The stem of the name of the last element is used with the suffix –ide

Not a part of a massive three-dimensional crystal structure •Exist as discrete molecules in the solid, liquid, and gas states

compounds characterized by covalent bonding

CuHCO3

Fe(NO 3)3

Clo-

Per chlorate

Which sentence is correct

ions composed of 2 or more atoms bonded together with an overall positive or negative charge

O-2

F-

Which of the sentence following is correct

Which of the sentence following is correct

CuO is copper(II) oxide