Advertisements
Advertisements
प्रश्न
Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red.
What sort of reaction takes place when solution A reacts with solution B?
उत्तर
When solution A (a base) reacts with solution B (an acid), a neutralisation reaction takes place, producing a salt and water.
APPEARS IN
संबंधित प्रश्न
Name an indicator which is red in acid solution but turns blue in basic solution.
Fill in the blank in the following sentences:
Onion and vanilla extract are..........................indicators.
Why should curd and other sour foodstuffs (like lemon juice, etc.) not be kept in metal containers (such as copper and brass vessels)?
A beaker of concentrated hydrochloric acid has a pH of 1. What colour will full range universal indicator turn if it is added to this beaker? Is it a strong or a weak acid?
Two solutions X and Y have pH = 4 and pH = 8, respectively. Which solution will give alkaline reaction and which one acidic?
A farmer has found that the pH of soil in his fields is 4.2. Name any two chemical materials which he can mix with the soil to adjust its pH.
Separate the following into substances having pH values above and below 7. How do these influence litmus paper?
(i) Lemon juice
(ii) Solution of washing soda
(iii) Toothpaste
(iv) Vinegar
(v) Stomach juices
Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red.
Name any two substances which can give solutions like A.
Hibiscus flower is an example for natural indicator.
Neutral substances do not bring about any change in colour of indicators.