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Question
Metal corrodes due to salts.
Options
True
False
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Solution
This statement is True.
RELATED QUESTIONS
Give one example in the following case:
A hydroxide which is highly soluble in water.
Give one example in the following case:
A base which is not an alkali.
How would you obtain an alkali from a base.
Why indicator does not get affected by salt?
Bases are soapy to touch when they are dry.
State whether the following statement is true or false. Correct the false statement.
Lime water turns red litmus blue.
Look at figure which shows solutions taken in test tubes A, B, C and D. What colour is expected when a piece of red litmus paper is dropped in each test tube? Nature of the solutions is given in the table for your help.
| Test tube | Nature of Solution | Change in colour of red litmus |
| A | Neutral | |
| B | Basic | |
| C | Acidic | |
| D | Neutral |
Phenolphthalein gives ______ colour with lime water.
Match the following:
| 1. | Wasp sting | a. | Milk of magnesia |
| 2. | Common salt | b. | Acetic acid |
| 3. | Organic acid | c. | Sodium chloride |
| 4. | Antacid | d. | Vinegar |
Al(OH)3 & Zn(OH)2 are not alkalis.
