words) as directed : (4 marks each)
20
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35. Answer the following questions :
( 1 ) Why does an aqueous solution of HCl conduct electricity ?
(2) What change in concentration of H30+ ion observed, when a solution of an acid
is diluted with water ?
(3) Which of the solution amongst the concentrated HCl and dilute HCI possess the
higher value of pH ?
( 4 ) Write a chemical equation of reaction occur between dilute HCI with NaHCO3.
OR
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1
Answer:
1 becoz it forms ions in water that is hydronium ion
2 concentration will decrease
3 dilute will have greater ph value
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