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प्रश्न
The label on the bottle of chemical is spoiled. How will you find whether the chemical is acidic or not?
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उत्तर
The chemical is acidic or not checked in two ways:
- By use of litmus paper:
- If the given solution is acidic, it turns blue litmus to red litmus.
- If the given solution is basic, it turns red litmus to blue litmus.
- If the given solution is neutral, there is no effect on litmus paper.
- By use of indicators:
- If the given solution is acidic, it turns methyl orange to red.
- If the given solution is basic, it turns methyl orange to yellow.
- If the given solution is neutral, there is no effect on methyl orange indicator.
संबंधित प्रश्न
Which gas is usually liberated when an acid reacts with a metal? How will you test for the presence of this gas?
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?
What type of ions is formed:
when a base (or alkali) is dissolved in water?
What do you understand by the term, acid?
Give one example in the following case:
A hydrogen containing compound which is not an acid.
Which are the industrial uses of acids?
Choosing the correct words given in brackets, complete the sentence given below:
A(n) ______ (acid/basic) salt is one in which the hydrogen of an acid has been partially replaced by a ______ (metal/non-metal).
State whether the following statement is true or false. Correct the false statement.
Lemon water is basic in nature.
Acids are ______ in taste.
Complete the following equation.
HCl + H2O → ______ + ______.
