Advertisements
Advertisements
प्रश्न
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name - a poisonous gas almost as heavy as air.
Advertisements
उत्तर
A poisonous gas almost as heavy as air is Carbon monoxide
संबंधित प्रश्न
Give one example for the following types of mixtures:
liquid-gas homogenous mixture
Give two applications of chromatography.
Name: the Hardest Naturally Occurring Substance
Define Elements.
Find the atomicity of the Following molecule:
Dinitrogen Oxide
Indicate whether the following statement is true or false:
Metals reflect light and are good conductors of electricity
Tick (√) the correct alternative from the choice given for the following statement
The hardest naturally occurring substance
Complete the statement given below by filling in the blank with the correct word.
From the elements nitrogen, chlorine, bromine, the element present in the atmosphere is ________.
The diagram represents fractional distillation for the separation of mixtures. Answer the following :
- Can two immiscible liquids be separated by this process?
- Separation of liquids by this process is based on which physical property?
- If methyl alcohol & water are to be separated, which liquid would remain in flask ‘X’ after condensation.
- Give a reason for the above answer.
- State the purpose of the fractionating column in the apparatus.
Higher Order Thinking Skills.
List out the metals, non-metals and metalloids which you use in your house, schools. Compare their properties.
