Advertisements
Advertisements
Question
Write down the formulae for the following compounds :
Calcium oxide
One Line Answer
Short/Brief Note
Advertisements
Solution
Calcium oxide: CaO
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Write down the formula of aluminium chloride.
An element Z has a valency of 3. What is the formula of oxide of Z ?
Write the formula of the following compound:
Potassium nitrate
Write the formula of the following compound:
Sodium dichromate
Write the formula of the following compound:
Sodium aluminate
Write the formula of the following compound:
Sodium nitrite
Write the formula of the following compound:
Aluminium carbonate
Write the formula of the following compound:
Copper [II] sulphate
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
Mg(SO4)2
Complete the following crossword puzzle (Fig. 3.1) by using the name of the chemical elements. Use the data given in Table.
| Across | Down | ||
| 2 | The element used by Rutherford during his α–scattering experiment | 1 | A white lustrous metal used for making ornaments and which tends to get tarnished black in the presence of moist air |
| 3 | An element which forms rust on exposure to moist air | 4 | Both brass and bronze are alloys of the element |
| 5 | A very reactive non–metal stored under water | 6 | The metal which exists in the liquid state at room temperature |
| 6 | Zinc metal when treated with dilute hydrochloric acid produces a gas of this element which when tested with burning splinter produces a pop sound. | 8 | An element with symbol Pb |

