Advertisements
Advertisements
प्रश्न
Match the following
| 1. | Galvanisation | Noble gas elements |
| 2. | Calcination | Coating with Zn |
| 3. | Redox reaction | Silver-tin amalgam |
| 4. | Dental filling | Alumino thermic process |
| 5. | Group 18 elements | Heating in the absence of air |
Advertisements
उत्तर
| 1. | Galvanisation | Coating with Zn |
| 2. | Calcination | Heating in the absence of air |
| 3. | Redox reaction | Alumino thermic process |
| 4. | Dental filling | Silver-tin amalgam |
| 5. | Group 18 elements | Noble gas elements |
APPEARS IN
संबंधित प्रश्न
Why do we classify elements?
An element A from group 14 of the periodic table combines with an element B from group 16.
(i) What type of chemical bond is formed?
(ii) Give the formula of the compound formed.
Write the names and symbols of two very reactive metals belonging to group 1 of the periodic table. Explain by drawing electronic structure, how either one of the two metals reacts with a halogen. With which name is the bond formed between these elements known and what is the class of the compound so formed known? State any four physical properties of such compounds.
How did the early chemists classify elements?
The basis of the classifications proposed by Dobereiner, Newlands and Mendeleev was ______.
State whether true or false. If false, correct the statement.
Metals can gain electrons.
The elements A, B, and C belong to groups 1, 14, and 17 respectively of the Periodic Table. Which two elements will form ionic compounds?
Which of the following elements does not lose an electron easily?
An element with the atomic number 40 is placed in the period.
Relate the names of the following scientists with the statements given below.
Arranged elements into groups containing three elements each.
