Litmus test — task. Science TNSB Mentoring, Class 9.

1.

Which of the following gives the result shown above?

\(Zn(OH)_2\)
\(Al(OH)_3\)
\(H_2SO_4\)
\(NaHCO_3\)

2.

Which of the following gives the result shown above?

Sodium hydroxide in water
Washing soda in water
Sodium carbonate solution
Water

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