ICSE Chemistry>Chapter 9 - Carbon and its Compounds>CHECK Point>Q 2

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is prepared by action of dilute $HCl$ on calcium carbonate. (Carbon dioxide/Carbon monoxide)

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Important Questions on Carbon and its Compounds

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8th ICSE

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ICSE Chemistry>Chapter 9 - Carbon and its Compounds>CHECK Point>Q 3

The molecular formula of sodium carbonate is _____.

$A : {Na}_{2} {CO}_{3} B : {NaCO}_{3} C : {NaHCO}_{3}$

Enter your correct answer as $A, B or C$ .

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ICSE Chemistry>Chapter 9 - Carbon and its Compounds>CHECK Point>Q 4

Carbon dioxide is _____ in water. (soluble/insoluble)

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ICSE Chemistry>Chapter 9 - Carbon and its Compounds>CHECK Point>Q 5

Carbon dioxide gas turns moist blue litmus paper _____.

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ICSE Chemistry>Chapter 9 - Carbon and its Compounds>TEST Yourself>Q A

_____ is the simplest hydrocarbon. (methane/ethane)

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ICSE Chemistry>Chapter 9 - Carbon and its Compounds>TEST Yourself>Q A

Graphite is a _____ form of carbon. (Crystalline/Amorphous)

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ICSE Chemistry>Chapter 9 - Carbon and its Compounds>TEST Yourself>Q A

In diamond, each carbon atom is bonded to _____ other carbon atoms. (four/three/two)

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ICSE Chemistry>Chapter 9 - Carbon and its Compounds>TEST Yourself>Q A

Diamond has a very _____ melting point. (high/low)

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ICSE Chemistry>Chapter 9 - Carbon and its Compounds>TEST Yourself>Q A

The lead of pencil is made by mixing clay with powdered _____. (charcoal/graphite/lead)