Question

A universal indicator contains

Answer 1

ph scale with values from 1 to 14
1 to 7 is acid and 7 to 14 is base .
1, 2 , 3 r strong acids and 12,13,14 are strong bases

Answer 2

THE UNIVERSAL INDICATOR
ALSO CALLED pH PAPER
IT'S A MIX-UP OF ALL THE NATURAL
INDICATORS
IT IS SCALED FROM 1 TO 14
7 IS NEUTRAL

HOPE IT HELPS U☺️☺️☺️