Match List I with List II and select the answer using the code given below the Lists: List I (Source) List II (Acid present) A. Tomato 1. Acetic acid B. Sour milk 2. Methanoic acid C. Ant sting 3. Oxalic acid D. Vinegar 4. Lactic acid Code A B C D (a) 3 2 4 1 (b) 3 4 2 1 (c) 1 2 4 3 (d) 1 4 2 3
A-3, B-4, C-2, D-1
Tomato contains oxalic acid, sour milk contains lactic acid, an ant sting contains methanoic (formic) acid, and vinegar contains acetic acid. This gives the pairing A-3, B-4, C-2, D-1, which matches option (b).
Which one of the following is used in soda-acid fire extinguishers?
Methyl Isocyanate gas, which was involved in the disaster in Bhopal in December 1984, was used in the Union Carbide factory for the production of:
‘German silver’ is used to make decorative articles, coinage metal, ornaments, etc. The name is given because:
A patient's abdomen (alimentary canal) can be examined by X-ray after administering which one of the following metal salts in the patient's meal?
Which one among the following substances is a compound?
Which one of the following statements regarding acids is not correct?
Which among the following methods is used to separate the constituents present in compound?
Match List-I with List-II and select the correct answer using the code given below the Lists :
| List-I (Trade Name) | List-II (Chemical Name) |
| A. Bleaching powder | 1. Sodium bicarbonate |
| B. Baking soda | 2. Sodium carbonate, 10 water |
| C. Washing soda | 3. Calcium oxychloride |
| D. Plaster of Paris | 4. Calcium sulphate, \(\frac{1}{2}\) water |
Code:
A B C D
Which of the following is a greenhouse gas?
I. Methane
II. Nitrous oxide
Which one of the following is used in soda-acid fire extinguishers?
The separation of two immiscible liquids can be done based on the difference in their_______.
Orange juice contains ______ acid due to which it tastes sour.
Impure water can be made pure