was mustard gas used in wwi

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
was mustard gas used in wwi	1.18	0.4	7191	98	27
was	0.1	0.6	3511	59	3
mustard	0.06	0.7	9981	100	7
gas	1.33	0.5	5423	37	3
used	1.54	0.1	5010	79	4
in	1.31	0.3	8338	52	2
wwi	1.08	1	7437	82	3

Keyword	CPC	PCC	Volume	Score
was mustard gas used in wwi	0.91	0.9	7778	89
was mustard gas used in ww1	1.86	0.5	165	95
was mustard gas used in ww2	1.93	0.6	6473	38
was mustard gas used in ww1 or ww2	1.14	1	8128	8
was mustard gas used in vietnam	1.82	0.8	3156	19
was mustard gas used in vietnam war	1.86	0.8	5063	30
which side used mustard gas in wwi	1.14	0.6	3979	31
who used mustard gas in wwi	0.23	0.7	1259	93
what was mustard gas used for in ww1	1.46	0.5	2300	6
mustard gas used in ww1	1.52	0.5	7592	93
when was mustard gas first used in ww1	1.36	0.3	4059	24
who used mustard gas ww1	1.86	0.6	2447	92
who first used mustard gas in ww1	1.11	0.7	1160	86
when was mustard gas used in ww1	1.99	1	8219	8
what battle was mustard gas first used in ww1	1.91	0.7	8109	49