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प्रश्न
Water is never added to acid in order to dilute it why?
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उत्तर
If water is added to a concentrated acid, the heat generated causes the mixture to splash out and cause severe burns, as it is an exothermic process. Thus, water is never added to acid to dilute it.
संबंधित प्रश्न
When a solution is added to vanilla extract, then the characteristic smell of vanilla cannot be detected. State whether the given solution is an acid or a base.
Why is it wrong to treat a bee sting with vinegar?
One of the following is a medicine for indigestion. This is:
(a) sodium hydroxide
(b) manganese hydroxide
(c) magnesium hydroxide
(d) potassium hydroxide
The acid produced naturally in our stomach is:
(a) acetic acid
(b) citric acid
(c) hydrochloric acid
(d) sulphuric acid
The salt which will give an acidic solution on dissolving in water is:
(a) KCl
(b) NH4Cl
(c) Na2Co3
(d) CH3COONa
Match the acids given in column (A) with their correct source given in column (B)
| Column (A) | Column (B) |
| (a) Lactic acid | Tamarind |
| (b) Acetic acid | Lemon |
| (c) Citric acid | Vinegar |
| (d) Tartaric acid | Curd |
Acids have a sour taste and they are soapy to touch.
Name the acid present in the given table.
Which of the following metal does not react with sodium hydroxides?
To Interpret:
CH4 and NH3, are not acids.
