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In which of the following allotropic forms, does carbon exist?

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Important Questions on Carbon and its Compounds

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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
Carbon dioxide is soluble in water; explain with an example.
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
What will be the product form when carbon reacts with some metals like iron, tungsten, titanium, etc. at elevated temperature?
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon

Give reasons for the following.
A large number of carbon compounds are known.

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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
Which of the following is a crystalline allotrope of carbon?
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
Carbon reacts with some metals like iron, tungsten, titanium, etc., to form its _____ at elevated temperatures.
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
Carbon is soluble in water; how?
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
Carbon dioxide is soluble in water.
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon

Explain the properties of carbon.

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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
Carbon reacts with some metals like iron, tungsten, titanium, etc., to form its carbonates at elevated temperatures.
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
A phenomenon in which an element exists in a different modification in same physical state is called
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
When carbon reacts with metal like tungsten, what reaction will take place?
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
When carbon reacts with sulphur, carbon forms its _____ at high temperatures.
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon

High Order Thinking Skills.

Why does carbon exist mostly in combined state?

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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
How was the carbon discovered?
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
In which of the solvents- water, kerosene and cooking oil does the coal powder dissolve?  What inference will you draw about the solubility of carbon?  
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
What will happen when carbon reacts with sulphur?
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
Cotyledons are also called-
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
 What type of element is carbon? Give some information about it.
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
_____ is a suitable solvent for sulphur.
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Science>Chemistry>Carbon and its Compounds>Introduction to carbon
When carbon reacts with sulphur, carbon forms its disulphide at high temperatures.