Advertisements
Advertisements
Question
Who are my companions?
| Group 'A' | Group 'B' |
| 1. Stainless steel | (a) Non-metal |
| 2. Silver | (b) compound |
| 3. Bhajani mixture for milling | (c) Mixture |
| 4. Salt | (d) Element |
| 5. Coal | (e) Alloy |
| 6. Hydrogen | (f) Metal |
Advertisements
Solution
| Group 'A' | Group 'B' |
| 1. Stainless steel | (e) Alloy |
| 2. Silver | (f) Metal |
| 3. Bhajani mixture for milling | (c) Mixture |
| 4. Salt | (b) compound |
| 5. Coal | (a) Non-metal |
| 6. Hydrogen | (d) Element |
RELATED QUESTIONS
Give two examples for the following: Metals
Fill in the blan
An ________ is a homogeneous mixture of two or more metals.
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Marble
Name: Three different forms of carbon
Tick (√) the correct alternative from the choice given for the following statement
A metal which is brittle
Tick (√) the correct alternative from the choice given for the following statement
A gaseous non-metal.
Give three differences between elements & compounds with relevant examples.
Match the separation of components in List I with the most appropriate process in List II.
| List I | List II |
| 1. Naphthalene from naphthalene & sodium chloride. | A: Separating funnel |
| 2. Cream from milk. | B: Sublimation |
| 3. Kerosene oil from kerosene oil & water. | C: Boiling |
| 4. Lead nitrate from an aqueous solution of lead nitrate. | D: Centrifugation |
| 5. Ammonia from an aqueous solution of ammonia. | E: Distillation |
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.
Matter is its simplest form is called ______.
