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प्रश्न
Choose the most appropriate answer
A solvent of Iodine is
विकल्प
Water
Kerosene oil
Alcohol
Petrol
उत्तर
Alcohol
APPEARS IN
संबंधित प्रश्न
Write true or false
A heterogeneous mixture has a uniform composition throughout the mixture
Match the columns.
| column A | column B |
|
1. to separate grain from chaff |
a. filtration |
| 2. to saparate sawdust from water | b. sedimentation and deeantation |
| 3. to separate iodine from sodium chloride | c. winnowing |
| 4. to separate iron fillings from sand | d.sublimation |
|
5. it is used to separate sand and water |
e maganetic separation |
|
|
f .handpicking |
Find the atomicity of the Following molecule:
Calcium Chloride
Indicate whether the following statement is true or false:
A compound is made up of just one kind of atom
Tick (√) the correct alternative from the choice given for the following statement.
The most abundant elements in the universe are
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.
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 |
What are elements? What are they made of?
Give the chemical formula for cane sugar.
