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प्रश्न
The preparation of Lead sulphate from Lead carbonate is a two-step process. (Lead sulphate cannot be prepared by adding dilute Sulphuric acid to Lead carbonate.)
Write the equation for the reaction that will take place when this first step is carried out.
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उत्तर
PbCO3 (s) + 2HNO3(dil) → Pb(NO3)2 (aq) + H2O (l) + CO2 ↑
संबंधित प्रश्न
Name an indicator which is pink in alkaline solution but turns colourless in acidic solution.
Which gas is usually liberated when an acid reacts with a metal? How will you test for the presence of this gas?
What is the common name of water soluble bases?
Give two examples of the following:
monobasic acid
An hydrous hydrogen chloride is not an acid but its aqueous solution is a strong acid. Explain.
Acids are bitter in taste.
Heshna and Keerthi are friends. Keerthi’s teeth are white without caries, but Heshna has teeth with caries. Why? How is it formed?
Fill in the cross word given in figure with the help of the clues provided.
Across
(2) The solution which does not change the colour of either red or blue litmus.
(4) Phenolphthalein gives pink colour in this type of solution.
(7) Colour of blue litmus in lemon juice.
Down
(1) It is used to test whether a substance is acidic or basic.
(3) It is a natural indicator and gives pink colour in basic solution.
(5) Nature of ant’s sting.
(6) It is responsible for the increase in temperature during a neutralisation reaction.
Which of the following metal does not react with sodium hydroxides?
To Interpret:
CH4 and NH3, are not acids.
