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प्रश्न
Give the name of the radical - OH
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उत्तर
OH – hydroxide
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संबंधित प्रश्न
Give one example for the following types of mixtures:
liquid-gas homogenous mixture
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Marble
Give reason: Argon is filled in electric bulbs.
Complete the statement given below by filling in the blank with the correct word.
An element is a pure substance which cannot be broken down by physical or _________ methods.
Write the names of elements from the following symbol:
Zn
‘An atom is the basic unit of an element’. Draw a diagram of an atom – divisible as seen today.
Select the correct answer from A, B, C, D & E for the statement given below :
A mixture consisting of elements & a compound.
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 |
Name the process associated with the following
A fine beam of light entering through a small hole in a dark room illuminates the particles in its paths.
Higher-Order Thinking questions:
Why is hydrogen considered an element?
