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प्रश्न
What do you observe when Phenolphthalein is added to sodium hydroxide solution.
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उत्तर
Solution turns pink
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संबंधित प्रश्न
Fill in the blank .
Soluble bases are called ............
What do you observe when Lead nitrate is heated.
Give two examples Basic oxide .
Give a reason why a catalyst is used in certain chemical reactions.
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
\[\ce{2Ca[NO3]2->[\Delta]2CaO + 4NO2 + O2}\]
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 water to give a base.
Give one example of –
A mixed oxide
Select the correct answer for the statement given below:
The neutral gas obtained on thermal decomposition of potassium nitrate.
