Advertisements
Advertisements
प्रश्न
What do you observe when Blue litmus paper is dipped in dilute hydrochloric acid.
उत्तर
Blue litmus turns red in an acid solution.
APPEARS IN
संबंधित प्रश्न
Fill in the blank .
Soluble bases are called ............
What do you observe when Lead nitrate is heated.
Give two examples Basic oxide .
A chemical reaction may be ‘reversible’ in nature. State the meaning of the term in italics.
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.
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.
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
\[\ce{2Ca[NO3]2->[\Delta]2CaO + 4NO2 + O2}\]
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.
Select the correct answer for the statement given below:
The neutral gas obtained on thermal decomposition of potassium nitrate.
