1.

Which of the following is a strong acid? (a) Nitric acid (b) Citric acid (c) Acetic acid (d) Tartaric acid

Answer»

ANSWER :

Nitric acid

Explanation :

  • Strong Acids :

The acid that completely ionise in the aqueous solution is called a strong acid . The lesser the pH VALUE of an acid , strong will be its acidic character . A strong acid releases more \tt{H^+} when dissolved in water .

These acids are also called mineral acids as they are formed from the minerals from the earth . Some common examples of strong acids are : Hydrochloric acid (HCl ) , Sulphuric acid \tt H_2SO_4 , Nitric Acid \tt HNO_3 , etc .

  • Weak Acids :

The acids which do not ionise completely in aqueous solution and give less \tt H^+ IONS are called weak acids . These acids have high pH value and are mostly eatable .

These acids are naturally occurring acids . For EXAMPLE : Citric acid (in citrous fruits) , TARTARIC acid (in tamarind) , acidic acid (in vinegar) , formic acid (in ant sting) , etc.



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