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प्रश्न
Name an acid used as an eyewash.
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उत्तर
Boric acid
संबंधित प्रश्न
Name the acid-base indicator extracted from lichen.
What is the common name of water soluble bases?
Which chemical is injected into the skin of a person during an ant's sting?
How can the effect of these stings be neutralised?
What happens when bases react with non-metal oxides? Explain with the help of an example. What does this reaction tell us about the nature of non-metal oxides?
Out of HCl and CH3COOH, which one is a weak acid and why? Describe an activity to support your answer.
Write the chemical name from the given formula.
H2SO4
Tartaric acid is a ______ acid.
In acidic solutions blue litmus changes into ______ colour.
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.
Bring the soil sample of your area, find out if it is acidic, basic or neutral. Discuss with farmers if they treat the soil in any manner.
