$CATEGORY: Science - Khan Academy/4.Carbon and its Compounds/4.Carbon and its Compounds--Versatile Nature Of Carbon

//Multiple Choice

Which functional group is present in alcohols? {
    ~COOH
    =-OH
    ~-CHO
    ~-CO
}

What is the suffix used for naming aldehydes? {
    ~-ol
    ~-one
    =-al
    ~-oic acid
}

Which functional group is present in carboxylic acids? {
    =-COOH
    ~OH
    ~CHO
    ~None of the above
}

What is the name of the compound with the molecular formula CH3CHO? {
    ~Ethanol
    =Ethanal
    ~Methanal
    ~Propanal
}

Which functional group is present in ketones? {
    =-CO
    ~CHO
    ~OH
    ~-COOH
}

What is the name of the compound with the molecular formula CH3COCH3? {
    ~Ethanal
    =Acetone
    ~Propanol
    ~Methanol
}

What is the suffix used for naming carboxylic acids? {
    ~-one
    ~-al
    =-oic acid
    ~None of the above
}

Which of the following is the correct name for CH3CH2OH? {
    =Ethanol
    ~Methanol
    ~Propanol
    ~Butanol
}

What is the name of the compound with the molecular formula HCHO? {
    =Methanal
    ~Ethanal
    ~Propanal
    ~Acetone
}

What is the functional group in ethers? {
    ~COO-
    =-O-
    ~OH
    ~-CO
}

//True or False

Alcohols contain the functional group -OH. {T}

The suffix used for naming ketones is -al. {F}

Methanal is the simplest aldehyde. {T}

Carboxylic acids contain the functional group -CHO. {F}

The molecular formula of ethanol is C2H6O. {T}

Acetone is an example of a ketone. {T}

Ethers have the functional group -CO-. {F}

The molecular formula of acetic acid is CH3COOH. {T}

The suffix -oic acid is used for naming carboxylic acids. {T}

Propanal is a ketone. {F}

//Fill in the blanks

The functional group present in alcohols is ______. {
    ~COOH
    =-OH
    ~CHO
    ~-CO
}

The suffix used for naming aldehydes is ______. {
    ~-ol
    =-al
    ~-one
    ~-oic acid
}

The functional group present in carboxylic acids is ______. {
    ~-CO
    ~CHO
    =-COOH
    ~-OH
}

The molecular formula CH3CHO represents ______. {
    ~Methanal
    =Ethanal
    ~Propanal
    ~Acetone
}

The functional group in ketones is ______. {
    ~-COOH
    ~CHO
    =-CO
    ~-OH
}

The molecular formula CH3COCH3 corresponds to ______. {
    ~Ethanal
    =Acetone
    ~Methanol
    ~Propanal
}

The suffix used for naming carboxylic acids is ______. {
    ~-one
    ~-ol
    =-oic acid
    ~-al
}

The molecular formula CH3CH2OH corresponds to ______. {
    ~Methanol
    ~Propanol
    =Ethanol
    ~Butanol
}

The compound with the molecular formula HCHO is named ______. {
    ~Ethanal
    =Methanal
    ~Propanal
    ~Butanal
}

The functional group present in ethers is ______. {
    ~COO-
    =-O-
    ~OH
    ~-CO
}

//Numericals

How many hydrogen atoms are present in ethanol (C2H5OH)? {
    ~4
    ~5
    ~6
    =7
}

What is the molecular weight of methanol (CH3OH)? (C \= 12, H \= 1, O \= 16) {
    ~30 g/mol
    =32 g/mol
    ~34 g/mol
    ~36 g/mol
}

What is the molecular formula of a ketone with 3 carbon atoms? {
    =C3H6O
    ~C3H8O
    ~C3H6
    ~C3H4O
}

How many hydrogen atoms are present in propanoic acid (C2H5COOH)? {
    ~5
    ~6
    =7
    ~8
}

What is the molecular weight of acetic acid (CH3COOH)? (C \= 12, H \= 1, O \= 16) {
    ~58 g/mol
    =60 g/mol
    ~62 g/mol
    ~64 g/mol
}

What is the molecular formula of an aldehyde with 2 carbon atoms? {
    =C2H4O
    ~C2H6O
    ~C2H6
    ~C2H2O
}

What is the molecular weight of acetone (CH3COCH3)? (C \= 12, H \= 1, O \= 16) {
    ~56 g/mol
    ~58 g/mol
    =60 g/mol
    ~62 g/mol
}

What is the molecular formula of ethanoic acid? {
    ~C2H4O
    =C2H4O2
    ~C2H6O
    ~C2H6O2
}

How many hydrogen atoms are in butanol (C4H9OH)? {
    ~9
    ~10
    =11
    ~12
}

What is the molecular formula of an alcohol with 3 carbon atoms? {
    =C3H8O
    ~C3H6O
    ~C3H8
    ~C3H6
}

//Match the following

Match the following items from Column A with their correct corresponding options from Column B\:
{
=Alcohol -> -OH
=Aldehydes -> -CHO
=Carboxylic acid -> -COOH
=Ketone -> -CO
}


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