Advertisements
Advertisements
प्रश्न
Write down the formulae of sodium oxide.
Advertisements
उत्तर
| Ions present | Formula |
![]() |
Na2O |
APPEARS IN
संबंधित प्रश्न
State the chemical symbols for the following elements :
Sodium, Potassium, Iron, Copper, Mercury, Silver.
If the valency of carbon is 4 and that of sulphur is 2, work out the formula of the compound formed by the combination of carbon with sulphur. What is the name of this compound ?
The formula of a compound is X3Y. The valencies of elements X and Y will be respectively :
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:
Green vitriol
Write the formula of the following compound:
Sodium zincate
Write the formula of the following compound:
Sodium sulphate
Write the formula of the following compound:
Calcium nitrate
Write the formula of the following compound:
Silver [I] chloride
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
(NH4)3SO4

