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प्रश्न
Give two examples of the following:
oxy-acid
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उत्तर
Nitric acid (HNO3), Sulphuric acid (H2SO4)
संबंधित प्रश्न
A white shirt has a yellow stain of curry. When soap is rubbed on this shirt during washing, the yellow stain turns reddish-brown. On rinsing the shirt with plenty of water, the reddish-brown stain turns yellow again.
What is the nature of soap (acidic/basic) as shown by the indicator present in curry stain?
State one observation for each of the following :
A small piece of zinc is added to dilute hydrochloric acid
Give the name and formula of two : Strong monobasic acids
Acid mixed with base forms ______.
What are the uses of acids?
Two acids ‘A’ and ‘B’ are given. Acid A gives one hydrogen ion per molecule of the acid in solution. Acid B gives two hydrogen ions per molecule of the acid in solution.
- Find out acid A and acid B.
- Which acid is called the King of Chemicals?
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 are ______ in taste.
Complete the following equation.
ZnO + 2HCl → ______ + ______.
The acid which contains four hydrogen atoms ______.
