Advertisements
Advertisements
Question
State whether the following statement is true or false. Correct the false statement.
A compound if acidic will turn all indicators red.
Options
True
False
Advertisements
Solution
This statement is False.
Explanation:
Acids do not give red colour with all indicators.
APPEARS IN
RELATED QUESTIONS
You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube?
Which chemical is injected into the skin of a person during an ant's sting?
How can the effect of these stings be neutralised?
What effect does the concentration of H+ (aq) ions have on the nature of a solution?
Explian the following:
Dil. HCl acid is stronger than highly concentrated acetic acid.
What do you understand by the strength of an acid? On what factors does the strength of an acid depend?
Choosing the correct words given in brackets, complete the sentence given below:
An acid is a compound which, when dissolved in water gives ______ ( hydronium / hydroxide) ions as the only ______ (positive/negative) ions.
HCl, HNO3, C2H5OH, C6H12O6 all contain H atoms but only HCl and HNO3 show acidic character. Why?
Acids are bitter in taste.
Fill in the cross word given in figure with the help of the clues provided.

Across
(2) The solution which does not change the colour of either red or blue litmus.
(4) Phenolphthalein gives pink colour in this type of solution.
(7) Colour of blue litmus in lemon juice.
Down
(1) It is used to test whether a substance is acidic or basic.
(3) It is a natural indicator and gives pink colour in basic solution.
(5) Nature of ant’s sting.
(6) It is responsible for the increase in temperature during a neutralisation reaction.
You are provided with four test tubes containing sugar solution, baking soda solution, tamarind solution, salt solution. Write down an activity to find the nature (acidic/basic/neutral) of each solution.
