Advertisements
Advertisements
प्रश्न
An element A forms an oxide A2O5.
What will be the formula of chloride of A ?
Advertisements
उत्तर
Formula of chloride of A:
Element / Ion A CI-
Valency 5 -1
Formula of the chloride of element A can be worked out by crossing over the valencies. Thus, the formula is ACl5.
APPEARS IN
संबंधित प्रश्न
Write down the formulae for the following compounds :
Magnesium hydroxide
Name the following compounds. Also write the symbols/formulae of the ions present in them :
- CuSO4
- (NH4)2SO4
- Na2O
- Na2CO3
- CaCl2
Give the empirical formula of Acitic Acid CH3COOH.
Match the following:
| Column A | Column B |
| (a) Pb(NO3)2 | (i) rotten eggs smell |
| (b) CO2 | (ii) burns with a pop sound |
| (c) (NH4)2Cr2O7 | (iii) the suffocating smell of sulphur |
| (d) HCI | (iv) lime water turns milky |
| (e) NO2 | (v) crackling sound |
| (f) O2 | (vi) residue swells up |
| (g) H2 | (vii) brown gas |
| (i) H2S | (viii) supports combustion |
| (j) SO2 | (ix) fumes with NH3 solution |
Name the element in the compound and give the formula of the following compound:
Phosphoric acid
Write the formula of the following compound:
Sodium chloride
Write the formula of the following compound:
Sodium dichromate
Write the formula of the following compound:
Sodium bicarbonate
Write the formula of the following compound:
Sodium aluminate
What do you understand by chemical formula of a compound? What is its significance?
