Sublimation is a technique that helps chemists to
A. break
B. purify
C. melt
D. freeze
Related Questions on Chapter 2: Atoms Molecules Mixtures & Compounds - Science Mcqs for Grade 6
The letter used to identify an element in the periodic table is known as
A. formula
B. idea
C. symbol
D. hint
Iron, cobalt and nickel are metals which are
A. non-magnetic
B. magnetic
C. insulator
D. none of them
Elements that are brittle and cannot be rolled into wires are known as
A. liquid
B. non-elastic
C. non-metal
D. metal