Advertisements
Advertisements
प्रश्न
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Vinegar
Advertisements
उत्तर
Acetic acid (Vinegar) — CH3COOH
APPEARS IN
संबंधित प्रश्न
Define: Elements
Give one example for the following types of mixtures :
solid-liquid heterogenous mixture.
State the number of atoms of CaCO3
Name: A form of carbon used as a gem
Fill in the blank
A metal which is a poor conductor of electricity is _______.
Select the correct answer from the choice in the bracket.
The positively charged particle of an atom.
Elements are broadly classified into metals and non-metals. State six general differences in the physical properties of metals and non-metals. State two metals and two non-metals which contradict with the general physical properties – giving reasons. State one difference in property between metalloids and noble gases.
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.
Match the following.
| 1. | Element | Made up of molecules |
| 2. | Compound | Impure substance |
| 3. | Colloid | Settles down on standing |
| 4. | Suspension | Pure substance |
| 5. | Mixture | Made up of atoms |
Matter is its simplest form is called ______.
