Chemistry Basic Concept

A. 1s2 2s2 2p6 3s2 3p6 3d7
B. 1s2 2s2 2p6 3s2 3p6 4s2 4p5
C. 1s2 2s2 2p6 3s2 3p5 3d10
D. 1s2 2s2 2p6 3s2 3p6 4s23d5

A. size of Cl atoms > Cl- ion
B. size of Na+ ion < Na atom
C. size of Na atom < Na+ ion
D. Cl- < Na+

A. Ethylene iodide
B. Ethylene bromide
C. Ethylene chloride
D. Ethylene fluoride

A. Aluminium
B. Sodium
C. Carbon
D. Sulphur

A. H2SO4
B. HNO3
C. both A and B
D. none of the above

A. First order reaction
B. Second order reaction
C. Zero order reaction
D. Third order reaction

A. Pd
B. Ni
C. Sn
D. All of the above

A. 6
B. 8
C. 10
D. 4

A. dilute and concentrated
B. dilute and saturated
C. saturated and unsaturated
D. saturated and super saturated

A. moles dm-3
B. moles kg-1
C. gram dm-3
D. none