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प्रश्न
Select the appropeiate option of the following statement:
An allotrope of carbon obtained by burning kerosene oil in a limited supply of air.
पर्याय
Anthracite
Diamond
Carbogen
Urea
Lampblack
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उत्तर
Lampblack
APPEARS IN
संबंधित प्रश्न
Write the balanced chemical equations for the preparation of carbon dioxide by:
the action of dilute sulphuric acid on sodium bicarbonate.
Match the colunm
| 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 |
FILL IN THE BLANK
.................. are the compounds of hydrogen and carbon only.
Why are carbon and its compounds used as fuels?
Answer the following question.
Why are methane compounds have poor conductors of electricity?
State how carbon occurs in the free state and in the combined state.
Give a balanced equation for the following conversion: [In one or two steps]
Carbon dioxide to carbon.
Complete the statement by filling the blank with the correct word from the option.
______ Chemistry is the Chemistry of carbon compounds mainly of ‘Carbon’, ‘Hydrogen’ & ‘Oxygen’.
Give reason for the following:
It is dangerous to stand behind a running engine of a vehicle.
Assertion (A): Carbon monoxide is a toxic gas of carbon.
Reason (R): smoking is a source of carbon monoxide.
