Advertisements
Advertisements
प्रश्न
Give two examples of Metalloids.
एक पंक्ति में उत्तर
Advertisements
उत्तर
Examples of Metalloids are Antimony, silicon, boron
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
संबंधित प्रश्न
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
Give one example for the following types of mixtures:
liquid-gas homogenous mixture
Name: a non-metal which is lustrous
Give three differences between metals and non-metals.
Define: Atom
Give one use of the following substance:
Coal
Fill in the blank
_________ refers to the number of atoms in the molecule of an element
Give the name of the radical - SO4
Define the term ‘compound’. In the compound carbon dioxide – the elements carbon & oxygen are combined in a fixed ratio. Explain.
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.
