Advertisements
Advertisements
प्रश्न
Name an acid used to remove ink spots.
Advertisements
उत्तर
Oxalic acid
APPEARS IN
संबंधित प्रश्न
Name one natural source of the following acid:
Oxalic acid
A white shirt has a yellow stain of curry. When soap is rubbed on this shirt during washing, the yellow stain turns reddish-brown. On rinsing the shirt with plenty of water, the reddish-brown stain turns yellow again.
Explain the changes in colour of this indicator which take place during washing and rinsing the shirt.
One of the following salts will give an alkaline solution on dissolving in water. This is:
Give one example in the following case:
A hydrogen containing compound which is not an acid.
Solution A is strong acid B weak acid C strong alkali.
Which solution contains solute molecules in addition to water molecules?
Which of the following is acidic in nature?
Which of the following set of substances contain acids?
Match the substances in Column I with those in Column II.
| Column 1 | Column II | ||
| (a) | Tartaric acid | (i) | soap |
| (b) | Calcium hydroxide | (ii) | curd |
| (c) | Formic acid | (iii) | unripe mangoes |
| (d) | Sodium hydroxide | (iv) | ant’s sting |
| (e) | Lactic acid | (v) | lime water |
You are supplied with five solutions: A, B, C, D and E with pH values as follows: A = 1.8, B = 7, C = 8.5, D = 13, and E = 5
Classify these solutions as neutral, slightly or strongly acidic and slightly or strongly alkaline.
Which solution would be most likely to liberate hydrogen with powdered zinc metal. Give a word equation for each reaction.
In a set of the given reactions, acetic acid yielded a product C.
\[\begin{array}{cc}
\phantom{}\ce{\underset{}{CH3COOH + PCl5} ->[][ ] \underset{}{A}->[C6H6][anhy.AlCl3 ] \underset{}{B}->[C2H5MgBr][Ether] \underset{}{C}}\\
\end{array}\]
Product C would be:
