litmus

noun 0.886

litmus test

noun 0.803

blotting paper

noun 0.579

test paper

noun 0.575

phenol red

noun 0.564

piece of paper

noun 0.558

linen paper

noun 0.556

thermal paper

noun 0.555

paper

noun 0.550

plain paper

noun 0.547

loo paper

noun 0.537

tracing paper

noun 0.530

writing paper

noun 0.528

sugar paper

noun 0.525

art paper

noun 0.521

construction paper

noun 0.521

tissue paper

noun 0.520

phenolphthalein

noun 0.519

chemical indicator

noun 0.517

photographic paper

noun 0.511

sheet of paper

noun 0.510

limewater

noun 0.508

abrasive paper

noun 0.506

paper chromatography

noun 0.503