Advertisements
Advertisements
प्रश्न
Four atoms of hydrogen combine with one atom of carbon to give methane [CH4]. State the valency of carbon.
Advertisements
उत्तर
Methane is formed by the combination of four hydrogen atoms and one carbon atom where valency of hydrogen is 1 and valency of carbon is 4.
APPEARS IN
संबंधित प्रश्न
Classify each of the following as a homogeneous or heterogeneous mixture.
Soda water, wood, air, soil, vinegar, filtered tea.
Compare the properties of metals and non-metals with respect to
- alleability
- ductility
- electrical conductivity.
What is a mixture ? Give two example of mixtures.
When a mixture of iron powder and sulphur powder is heated strongly to form iron sulphide, then heat energy is :
List four characteristics of a mixture.
Write “true” or “false” for the following statement
Common salt is separated from its solution in water by decantation.
Tick (√) the correct alternative from the choice given for the following statement:
A heterogeneous mixture is
Differentiate between a homogenous and a heterogeneous mixture with one example of each in the (a) solid-solid (b) solid-liquid If (c) liquid-liquid state of the mixture.
Write the sequence of steps you would use for making tea. (Use the words: mixture, dissolve, filtrate and residue).
A mixture of two or more miscible liquids, for which the difference in the boiling points is less than 25 K can be separated by the process called ______.
