Advertisements
Advertisements
प्रश्न
What do you observe when Phenolphthalein is added to sodium hydroxide solution.
Advertisements
उत्तर
Solution turns pink
APPEARS IN
संबंधित प्रश्न
Fill in the blank .
Soluble bases are called ............
What do you observe when Blue litmus paper is dipped in dilute hydrochloric acid.
Give two examples of oxides.
Acidic oxide.
Give a reason why a catalyst is used in certain chemical reactions.
Give a balanced equation for the reversible catalytic reaction involving sulphur dioxide as one of the reactants.
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.
Limestone
\[\ce{CaCO3->[\Delta]CaO + CO2}\]
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 hydroxide
\[\ce{Ca[OH]2->[\Delta]CaO + H2O}\]
State the meaning of the term ‘oxide’.
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 the example of the acidic oxide, basic oxide, amphoteric oxide and neutral oxide. State which of the oxide react with acids and bases to give salt and water.
