Advertisements
Advertisements
Question
Name the element in the compound and give the formula of the following compound:
Phosphoric acid
Advertisements
Solution
| Element | Element in compound | Formula |
| Phosphoric acid | H, P, O Hydrogen, phosphorous, oxygen |
H3PO4 |
APPEARS IN
RELATED QUESTIONS
Write down the formulae for the following compounds :
Magnesium hydroxide
(a) Write the symbols/formulae of two simple ions and two compound ions (or polyatomic ions).
Complete the following statement by selecting the correct option :
The correct formula of aluminium oxide is
Correct the following statement:
A molecular formula represents an element.
Give the empirical formula of Glucose C6H12O6 .
Identify the following substance:
A brown gas D with the irritating smell.
Write the formula of the following compound:
Potassium sulphate
Write the formula of the following compound:
Sodium carbonate
Write the formula of the following compound:
Sodium dichromate
Write the formula of the following compound:
Sodium bisulphite
Write the formula of the following compound:
Calcium chloride
Write the formula of the following compound:
Calcium carbonate
Write the formula of the following compound:
Aluminium hydroxide
Write the formula of the following compound:
Aluminium oxide
Write the formula of the following compound:
Copper [II] sulphide
Write the formula of the following compound:
Lead [II] nitrate
Write the chemical formula for the following elements.
- Hydrogen
- Nitrogen
- Ozone
- Sulphur
Which of the following represents a correct chemical formula? Name it.
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 |
