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प्रश्न
Tooth decay is caused by the presence of a base.
पर्याय
True
False
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उत्तर
This statement is False.
Explanation:
Tooth decay is caused by the presence of an acid.
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संबंधित प्रश्न
Nitric acid turns red litmus blue.
How will you test for the gas which is liberated when hydrochloric acid reacts with an active metal?
what effect does the concentration of [H3O+] ion have on solution?
Do basic solutions also have H+(aq)? Why are they basic?
Out of three metals P, Q and R, P is less reactive than Q and R is more reactive than P and Q both. Suggest an activity to arragne P, Q and R in order of their decreasing reactivity.
Define Acid.
Acids are bitter in taste.
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.
Write the important uses of hydrochloric acid and sulphuric acids.
Which one of the following will not produce acid with water?
