Advertisements
Advertisements
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.)
Why is the direct addition of dilute sulphuric acid to Lead carbonate an impractical method of preparing Lead sulphate?
Advertisements
उत्तर
When dilute sulphuric acid is added directly to lead carbonate, the lead sulphate thus formed will be deposited on solid lead carbonate disconnecting lead carbonate from sulphuric acid.
संबंधित प्रश्न
Nitric acid turns red litmus blue.
State some of the uses of mineral acids in industry.
What is meant by strong acids and weak acids? Classify the following into strong acids and weak acids:
HCI, CH3 COOH, H2 SO 4, HNO3, H2 CO3 , H2 SO3
Give two examples of the following:
monobasic acid
What is the difference between an alkali and a base?
Write balanced equation to satisfy the following statement:
\[\ce{Acid + sulphide -> Salt + Hydrogen sulphide}\]
Give the name and formula of two : Strong monobasic acids
State whether the following statement is true or false. Correct the false statement.
All substances are either acidic or basic.
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.
Acids have a sour taste and they are soapy to touch.
