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प्रश्न
Name the scientist who disproved the 'vital force theory' for the formation of organic compounds.
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उत्तर
Friedrich Wohler is the scientist who disproved the 'vital force theory' for the formation of organic compounds.
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संबंधित प्रश्न
In addition to some propane and ethane, LPG cylinders contain mainly two isomers of another alkane. Name the two isomers and write their condensed structural formulae.
Fill in the blank.
The name ‘carbon’ is derived from the Latin word...........
State the term:
The property by which atoms of an element link together to form long chain or ring compounds.
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Substances whose atoms or molecules are not arranged in a geometrical pattern.
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| column A | column B |
| 1. A product of incomplete burning | a. Hopcolite |
| 2. Nature of carben monoxide | b. Combustible gas |
| 3. A compound formed by the combination of haemoglobin and carbon monoxide | c. carboxy-haemoglobin |
| 4. A mixture of metallic oxides | d. Carbon monoxide |
| 5. Carbon monoxide | e. Highly poisonous |
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Carbon atom has ................... electrons in its valence shell.
FILL IN THE BLANK
..................... is used as a pigment and colouring matter in ink and shoe polish.
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In which compound forms does carbon occur?
Answer the following question.
Name the type of bonds formed in the methane compound.
State how carbon occurs in the free state and in the combined state.
Carbon dioxide occurs both in the free state and in the combined state.
State three methods how carbon dioxide is added to the atmosphere.
Vinegar is a solution of
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