Advertisements
Advertisements
प्रश्न
Three solutions P, Q and R have pH value of 3.5, 5.2 and 12.2 respectively. Which one of these is a:
1) Weak acid?
2) Strong alkali?
Advertisements
उत्तर
1) Q having pH 5.2 is the weak acid
2) R having pH 12.2 is strong alkali.
APPEARS IN
संबंधित प्रश्न
A solution turns red litmus blue, its pH is likely to be ______.
Wasp sting contains:
(a) a sugar solution
(b) an acidic liquid
(c) a salt solution
(d) an alkaline liquid
Write balanced equation to satisfy the following statement:
\[\ce{Acid + Active metal -> Salt + hydrogen}\]
Match the pairs.
| Group A | Group B |
| 1. Tamarind | a. Acetic acid |
| 2. Curd | b. Citric acid |
| 3. Lemon | c. Tartaric acid |
| 4. Vinegar | d. Lactic acid |
Explain, all alkalis are bases but all bases are not alkalis.
Give the reaction of acid with nitrates. State the conditions under which they react.
Acid mixed with base forms ______.
Which of the following statements is true for acids?
Lemon juice and vinegar taste ______ because they contain ______.
The Acid secreted in our stomach is ______.
