Question

What is the colour change of Tumeric solution when added into Caustic soda :
a)Red litmus
b)Blue litmus
c)Phenolphthalein
d)Methyl orange

Answer 1

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Option A.) Red litmus

Pinkish red is the colour change of Tumeric solution when added into Caustic soda.

Base + Natural Indicator ➝ Red

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Caustic Soda is the common name of the base Sodium Hydroxide (NaOH) .

It is also known as lye.

It is made by the Na+ & Oh- ions .

It's molar mass is approx 40 g/mol.

It's pH value is 14 which means it's basic in nature.

Caustic Soda is alkali.

It is also used for increasing pH of Water.

Answer 2

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a) Red Litmus

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