Advertisements
Advertisements
Question
What do you observe when Phenolphthalein is added to sodium hydroxide solution.
Advertisements
Solution
Solution turns pink
APPEARS IN
RELATED QUESTIONS
Fill in the blank .
Soluble bases are called ............
What do you observe when Blue litmus paper is dipped in dilute hydrochloric acid.
What do you observe when Lead nitrate is heated.
Give two examples of oxides.
Acidic oxide.
A chemical reaction may be ‘reversible’ in nature. State the meaning of the term in italics.
Certain thermal decomposition reaction, resulting in the formation of the oxide. Give a balanced equation for the thermal decomposition of the following, which result in the formation of metallic oxide.
Lead carbonate
\[\ce{PbCO3->[\Delta]PbO + CO2}\]
Certain thermal decomposition reaction, resulting in the formation of the oxide. Give a balanced equation for the thermal decomposition of the following, which result in the formation of metallic oxide.
Calcium nitrate
\[\ce{2Ca[NO3]2->[\Delta]2CaO + 4NO2 + O2}\]
Certain thermal decomposition reaction, resulting in the formation of the oxide. Give a balanced equation for the thermal decomposition of the following, which result in the formation of metallic oxide.
Calcium hydroxide
\[\ce{Ca[OH]2->[\Delta]CaO + H2O}\]
Give the example of the acidic oxide, basic oxide, amphoteric oxide and neutral oxide. State which of the oxide react with a base to give salt and water.
Give one example of –
A mixed oxide
