Chemistry
Match the uses of alloys in List 1 with the appropriate answer from List 2.
| List 1 | List 2 |
|---|---|
| (a) Used in making decorative articles. | 1. Stainless steel |
| (b) An alloy used in making aircraft and light tools. | 2. Brass |
| (c) Used in making surgical Instruments. | 3. Duralumin |
Related Questions
Select the correct answer from the options given in the brackets:
(a) The ion which is discharged at the cathode during the electrolysis of CuSO4 solution using copper electrodes. [Cu2+, OH-, SO42-, H+]
(b) During electroplating of an article with Ag using sodium argentocyanide as an electrolyte, the anode is made of. [Cu, Ag, Pt, Na]
Ethane C2H6 burns in oxygen to produce carbon dioxide and water as shown in the equation given below:
2C2H6 + 7O2 ⟶ 4CO2 + 6H2O
Calculate the composition of the resulting gaseous mixture at room temperature when 60 c.c. of ethane burns in 250 c.c. of oxygen.
You are provided with some compounds in the box.
[SO2, PbO, CO, K2SO4, H2SO4, CH3COOH, NaHSO4, KCl]
Choose the compound from the above box that fits the descriptions from (a) to (c).
(a) An acid present in vinegar.
(b) An oxide which dissolves in water forming an acid.
(c) A salt formed by the incomplete neutralization of an acid by a base.
Draw the dot and cross structure of the following:
(a) Hydronium ion
(b) Oxygen molecule
(c) Calcium oxide
[Atomic number: H = 1, O = 8, Ca = 20]