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Science CLASS 10 > Ch-4 Carbon > Flashcards

Ch-4 Carbon Flashcards

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1
Q

What is the atomic number of carbon?

A

6

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2
Q

True or False: Carbon can form bonds with other carbon atoms.

A

True

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3
Q

Fill in the blank: The four valence electrons in carbon allow it to form _____ bonds.

A

covalent

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4
Q

What are the two main allotropes of carbon?

A

Diamond and Graphite

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5
Q

Which form of carbon is used in pencils?

A

Graphite

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6
Q

What type of bond is present in diamond?

A

Covalent bond

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7
Q

True or False: Carbon dioxide is an organic compound.

A

False

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8
Q

What is the general formula for alkanes?

A

C_nH_(2n+2)

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9
Q

What is the simplest alkane?

A

Methane (CH4)

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10
Q

Which functional group characterizes alcohols?

A

Hydroxyl group (-OH)

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11
Q

What is the chemical formula for ethanoic acid?

A

CH3COOH

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12
Q

Name a property of carbon compounds.

A

They can be volatile.

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13
Q

True or False: All carbon compounds are flammable.

A

False

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14
Q

What type of reaction is involved in the combustion of carbon compounds?

A

Exothermic reaction

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15
Q

Fill in the blank: The process of converting a saturated hydrocarbon to an unsaturated hydrocarbon is called _____ .

A

dehydrogenation

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16
Q

What is a common use of carbon black?

A

Pigment in inks and paints

17
Q

What is the prefix for a 5-carbon alkane?

A

Pent-

18
Q

True or False: Carbon can form a maximum of four single bonds.

A

True

19
Q

What is the name for compounds that contain only carbon and hydrogen?

A

Hydrocarbons

20
Q

What is the bond angle in a tetrahedral carbon compound?

A

109.5 degrees

21
Q

Name one use of graphite.

A

Lubricant or battery anode

22
Q

What is the process of forming a carbon chain by removing water called?

A

Condensation reaction

23
Q

What is the common name for the compound CH4?

A

Methane

24
Q

Fill in the blank: The compound C2H4 is known as _____ .

A

Ethene

25
Q

What is the main component of natural gas?

A

Methane

26
Q

True or False: Carbon can form multiple bonds with other elements.

A

True

Science CLASS 10 (2 decks)

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