Advertisements
Advertisements
प्रश्न
Write the radical of the following valency:
Oxygen
विकल्प
1+
2+
3+
1−
2−
3−
MCQ
Advertisements
उत्तर
2−
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Define: Elements-
Give two examples of the following :
Solid + Solid mixture
The English name of an element is potassium, its Latin name will be :
Match the metallic elements – with their correct symbols Metallic elements
| Metallic elements | Symbol |
| (a) Potassium | (1) Ca |
| (b) Sodium | (2) Zn |
| (c) Calcium | (3) Pb |
| (d) Magnesium | (4) Hg |
| (e) Zinc | (5) Cu |
| (f) Aluminum | (6) Au |
| (g) Iron | (7) K |
| (h) Lead | (8) Fe |
| (i) Copper | (9) Al |
| (j) Mercury | (10) Na |
| (k) Silver | (11) Mg |
| (l) Platinum | (12) Pt |
| (m) Gold | (13) Ag |
Give the formula of the following gas:
Hydrogen chloride
Name the following:
An acid whose formula is ‘H2CO3’.
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Mercury
write symbol with the variable valency
What does the symbol '(l)' present in a chemical equation, mean?
Symbol of mercury is
Write the symbols for the following elements.
- Oxygen
- Gold
- Calcium
- Cadmium
- Iron
