Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
Potassium bisulphate - KHSO4 - `"K"^1["HSO"_4]^(1-)`
APPEARS IN
संबंधित प्रश्न
Write down the formulae of magnesium hydroxide.
State the chemical symbols for the following elements :
Sodium, Potassium, Iron, Copper, Mercury, Silver.
What is the difference between 2H and H2 ?
An element Y has a valency of 4. Write the formula for its :
- chloride
- oxide
- sulphate
- carbonate
- nitrate
The formula of carbonate of a metal M is M2CO3.
What will be the formula of its nitride ?
Give the formula and valency of:
aluminium ………………. .
Give the empirical formula of : Benzene C6H6
Identify the following substance:
An alkaline gas A which gives dense white fumes with hydrogen chloride.
What is a chemical formula? What is the significance of a formula?give an example to illustrate?
Name the element in the compound and give the formula of the following compound:
Nitric acid
Write the formula of the following compound:
Potassium dichromate
Write the formula of the following compound:
Potassium permanganate
Write the formula of the following compound:
Sodium sulphite
Write the formula of the following compound:
Magnesium sulphate
Write the formula of the following compound:
Aluminium chloride
Write the formula of the following compound:
Aluminium hydroxide
Write the formula of the following compound:
Tetra amine copper [II] sulphate
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
(NH4)3SO4
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 |
There is ______ oxygen atom is water molecule.
