Diagnostic Test

A. Molecules of water in liquid state
B. Atoms of helium in gaseous state at high temperature
C. Molecules of hydrogen chloride gas
D. Molecules of solid iodine

A. Ionic crystal
B. Covalent crystal
C. Molecular crystal
D. Any type of crystal

A. one / seventeen
B. sixteen / seventeen
C. one / three
D. two / three

A. Sublimation
B. Crystallisation
C. Solvent extraction
D. Distillation

A. Nature of reactants
B. Nature of crucible
C. Nature of product
D. Nature of precipitate

A. 50% KOH
B. Lime water
C. CaCl2
D. Mg (CIO4)2

A. F – Cl – Br
B. Li+1 – Na+1 – K+1
C. F – Ne – Na+
D. H+ – H- – H

A. 22.4 dm3
B. 2.24 dm3
C. 1.12 cm3
D. 1.12 dm3

A. arrangement of electrons in orbitals
B. position in the periodic table
C. properties depend upon mass
D. chemical properties