MEDIUM
CTET Paper 2
IMPORTANT
Earn 100
Name an acid used for removing ink stains:
50% studentsanswered this correctly
Important Questions on Materials of Daily Use
EASY
CTET Paper 2
IMPORTANT
Natural fibers are _____.
EASY
CTET Paper 2
IMPORTANT
Composition percentage of and in Portland cement is _____.
MEDIUM
CTET Paper 2
IMPORTANT
What happens when dry slaked lime reacts with chlorine gas?
MEDIUM
CTET Paper 2
IMPORTANT
Each cell in our body contains DNA. We also have proteins and fats in our body. What is common among DNA, proteins, and fats?
EASY
CTET Paper 2
IMPORTANT
Identify the incorrect statement:
1. Acids are sour in taste whereas bases are bitter in taste and soapy to touch.
2. Acids turn blue litmus red and bases turn red litmus blue.
3. Solutions of substances that show different colors in acidic, basic and neutral solutions are called indicators.
4. An acid and a base neutralize each other to form a salt and a salt is always neutral.
MEDIUM
CTET Paper 2
IMPORTANT
You have three test tubes X, Y and Z half-filled with different solutions, as X is filled with sodium chloride solution, Y is filled with sodium hydroxide solution and Z is filled with dilute hydrochloric acid. On adding one drop of phenolphthalein solution to each of the above solutions, you would observe the solutions in the test tubes as _____.
MEDIUM
CTET Paper 2
IMPORTANT
A teacher of class VIII demonstrates the following activity in her class: The teacher takes a small amount of sulphur in a spoon and burns it. She then puts the spoon into a tumbler with a lid to ensure that the gas produced does not escape. After a few minutes, she adds water to the tumbler. What happens, if blue and red litmus papers are put into the tumbler?
MEDIUM
CTET Paper 2
IMPORTANT
Select the true statement from the following:
