MEDIUM
CTET Paper 2
IMPORTANT
Earn 100

Select the true statement from the following:

50% studentsanswered this correctly

Important Questions on Materials of Daily Use

EASY
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 4 - Materials of Daily Use>CHAPTER EXERCISE>Q 1
Hydrogen chloride (HCl) when in pure form, does not show acidity during litmus test. But turns blue litmus red when it is dissolved in water. Suggest an appropriate reason for this contradiction _____.
MEDIUM
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 4 - Materials of Daily Use>CHAPTER EXERCISE>Q 2

Match Column I with Column II and answer using the codes that follow:

Column I (ACID) Column II(SOURCE)
1. Citric Acid P. Ant String
2. Formic Acid Q. Apple
3. Malic Acid R. Tamarind
4. Tartaric Acid S. Lemon

Codes:
P, Q, R, S        

EASY
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 4 - Materials of Daily Use>CHAPTER EXERCISE>Q 3
Hydrochloric acid is produced in our stomach to digest food, still it is not considered as an organic acid. Why?
EASY
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 4 - Materials of Daily Use>CHAPTER EXERCISE>Q 4
Identify the sets of oxides that form acids, when dissolved in water and hence are the major cause of acid rain and of environmental concern _____.
EASY
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 4 - Materials of Daily Use>CHAPTER EXERCISE>Q 5
Ravi identified choona (slaked lime), found at paan wala's shop, as a base. Because he was taught in his science class that a substance is a base if it _____.
EASY
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 4 - Materials of Daily Use>CHAPTER EXERCISE>Q 6
Out of the following given alternatives all except one represent similarities between an acid and a base. Pick the one that distinguishes a base from an acid _____.
EASY
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 4 - Materials of Daily Use>CHAPTER EXERCISE>Q 7
Which of the following synthetic indicators turns red in a basic medium and turns yellow in an acidic medium?
EASY
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 4 - Materials of Daily Use>CHAPTER EXERCISE>Q 8
During an experiment phenolphthalein is added to an acid solution. After that, a basic solution is added drop wise until the complete neutralization of acid occurs. If one more drop of the basic solution added, then the colour of the acid containing solution would turn to _____.