Five solutions A,B,C,D and E when tested | Class 10 Science Chapter Acids, Bases and Salts, Acids, Bases and Salts NCERT Solutions

Question:

Five solutions A,B,C,D and E when tested with universal indicator showed pH as 4,1,11,7 and 9, respectively. Which solution is

(a) neutral?
(b) strongly alkaline?
(c) strongly acidic?
(d) weakly acidic?
(e) weakly alkaline?

Arrange the pH in increasing order of hydrogen-ion concentration.

Answer:

(a) Solution D is neutral having pH 7

(b) Solution C is strong alkaline with pH 11

(c) Solution B is strong acidic with pH 1

(d) Solution A is weak acidic with pH 4

(e) Solution E is weak alkaline with pH 9


11 < 9 < 7 < 4 < 1. The pH can be arranged in the increasing order of the concentration of hydrogen ions.


Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

  • Read the question carefully and focus on the core concept being asked.
  • Reference examples and data from the chapter when answering questions about Acids, Bases and Salts.
  • Review previous year question papers to get an idea of how such questions may be framed in exams.
  • Practice answering questions within the time limit to improve your speed and accuracy.
  • Discuss your answers with your teachers or peers to get feedback and improve your understanding.

Comments

Comment(s) on this Question

Welcome to the NCERT Solutions for Class 10 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 6 , Question 9: Five solutions A,B,C,D and E when tested with universal indicator showed pH as 4,1,11,7 and 9, respe....