Advertisements
Advertisements
प्रश्न
In the chemical word equation – Zinc + Sulphuric acid → Zinc sulphate + Hydrogen
The molecular equation is :
Zn + H2SO4 → ZnSO4 + H2[g].
State what [g] represents.
Advertisements
उत्तर
[g] represents gas.
संबंधित प्रश्न
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Phosphate
Fill in the blank:
Symbolic expression for a molecule is called _____.
Match the noble gases – with their correct symbols:
| Noble gases | Symbols |
| (a) Helium | (1) Ar |
| (b) Neon | (2) Xe |
| (c) Argon | (3) Rn |
| (d) Krypton | (4) He |
| (e) Xenon | (5) Kr |
| (f) Radon | (6) Ne |
Give the symbol of the following element:
Antimony
State the type of element for the following:
Chlorine
Write the chemical formula of the following:
aluminium chloride
State the valency of the following metallic element and write symbol with the valency
Aluminium
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Carbonate
Which of the following symbols of elements are incorrect? Give their correct symbols
- Cobalt CO
- Carbon c
- Aluminium AL
- Helium He
- Sodium So
In the same way in chemistry, each element is denoted by a ______.
