10. Observe the given figure cerefully and select the correcct statements. D) Heat is evolved in this reaction. HCI Burette II) The colour of the mixture in the conical NaOH phenolphthalein flask is pink in the beginning. III) It represents a neutralisation reaction. IV) No new substance is formed in the reaction. a) I, II and III only b) II and III only d) None of the c) III and IV only
Answers
Answer:
The colour of the final mixture when added HCl to it
The colour (pink colour) will disappear.
the reaction between an acid and a base is known as neutralisation in this reaction and acid neutralizes the effect of acid and a base this reaction result in the formation of salt and water and energy in the form of heat is evolved.
Process:
fill half in test tube HCl and two drops of phenolphthalein to it start it continuously. next add Sodium Hydroxide till pink colour appears now add one drop of HCl the pink colour disappears so it is evident that when a solution is acidic it gives no colour this shows that neutralization reaction has occurred
Explanation:
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Answer:
a) I, II and III only
Explanation:
The reaction between an acid (HCl) and a base(NaOH) is known as neutralisation in this reaction and acid neutralizes the effect of acid and a base this reaction result in the formation of salt and water and energy in the form of heat is evolved.
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