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A few drops of concentrated HCI are added to about 10cm3 of a solution of...

Chemistry
JAMB 1994

A few drops of concentrated HCI are added to about 10cm3 of a solution of pH 3.4. The pH of the resulting mixtures is?

  • A. less than 3.4
  • B. greater than 3.4
  • C. unaltered
  • D. the same as that of pure water
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Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
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Correct Answer: Option A
Explanation

The addition of concentrated HCl to the solution makes the solution more acidic and the pH falls below the original value that is the pH value of the solution will now be less than 3.4.

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Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Join your school's WhatsApp group
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Join your school's WhatsApp group
Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts