4 Written Questions

1. yellow
2. blue
3. hydroiodic, sulfuric, hydrochloric, nitric, hydrobromic
4. pink

3 Multiple Choice Questions

1. red
   1. litmus acid
   2. brom. blue acid
   3. litmus base
   4. strong acids
2. colourless
   1. phenoldsfhljk acid
   2. phenolsdfjkdjfh base
   3. brom. blue acid
   4. litmus acid
3. yellow
   1. litmus base
   2. brom blue base
   3. acid- methyl orange
   4. base - methyl orange

3 True/False Questions

1. strong bases → KOH, NaOH, Ba(OH)2, CaOH

   True        False

2. acid- methyl orange → red

   True        False

3. brom blue base → yellow

   True        False