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Worksheets30-60
Total questions: 30
Worksheet time: 15mins
Complete the chemical reaction of HCOOH + NaOH →
НСООNa + Н2О
Na2СО3 + Н2О
НСООNa + Н2
Na2СО3 + Н2О
The pyrolysis products of the reaction C2H5COOH + NaOH → are
С2Н6 + Na2СО3
СН3 + Na2СО3
СО2 + Н2О
С4Н10
The products of the Wurz-Shorygin reaction are: 2С2Н5I + 2Na →
C4Н10 + 2NaI
C2Н5 – СН2I + 2NaI
C2Н6 + 2NaI
C2Н4 + 2NaI
Determine the products of the following reaction: CH2Br - CH2Br + Zn →
CH2 = CH2 + ZnBr2
СН2Br
ZnBr2
C2H6
The functional group of carboxylic acids is:
<variant>– СНО
<variant>– СООН
<variant>– С = О
<variant>– ОН
– СНО
– СООН
– С = О
– ОН
Esters are formed as a result of the reaction:
esterification
hydration
hydrolysis
oxidation
Vinylacetylene corresponds to the formula:
НС ≡ СН – СН = СН
Н2С = СН – СН = СН2
Н2С = СН2
НС ≡ СН
Which products are formed by the following reaction: CH3-CH = CH2 + Br2 →
СН3 – СН Вr – СН2Вr
СН3 – СН3 + НВr
СН3 – СН2 - СН3 + НВ
СН4 + НВr + СО2
Determine the reaction products C2H5COOH + PCl5 →
СН3СОСl + НСl + РОСl3
НСООСl + POCl3
С2Н5 + НСl + POCl3
НСl + POCl3
> The reaction of propionic acid with ethanol results in:
СН3СН2СООС2Н5 + Н2О
СН3 – С(СН3)3 – СООН
СН3СН2СОС2Н5 + Н2О
С2Н5ОН
Alanine exhibits properties:
amphoteric
main
acidic
oxidative
The composition of proteins includes:
amino acids of unbranched structure
α-amino acids
aliphatic amino acids
aliphatic diamines
Name the compound CH3 - CH2 - CHNH2 – COOH
α-aminobutyric acid
β-aminobutyric acid
γ-aminobutyric acid
butyric acid
Establish homologous substances:
propanediol and ethanediol
propanol-1 and propanol-2
glycerin and phenol
butanoic acid and butanal
Dimethyl propane belongs to the class of hydrocarbons, the general formula of which is:
Cn H2n+2
Cn H2n-2
Cn H2n
Cn H2n-6
The carboxyl group is present in the molecule:
acetic acid
methanol
formaldehyde
butadiene
The carbonyl group is contained in the molecule:
formaldehyde
methanol
butadiene
acetic acid
Isomers are:
2-methylpropanol-1 and 2-methylpropanol-2
petanol-1 and butanol-2
isobutyric acid and acetic acid
Butanal and propanal
Which group of atoms is a functional group of alcohols:
–OH
–COOH
–OR
–COH
Which group of atoms is the functional group of amines?
–NH2
–OH
–COOH
–OR
Which group of atoms is the functional group of aldehydes?
–COH
–OH
–COOH
–OR
The hydroxo group is present in the molecule:
methanol
formaldehyde
butadiene
acetic acid
Isomers are:
pentanal and pentanone
butane and butene-2
>butane and butanal
isobutane and pentane
The general formula of the ultimate hydrocarbons:
СnH2n+2
СnH2n-2
СnH2n
СnH2n-6
The general formula of ethylene hydrocarbons:
СnH2n
СnH2n-2
СnH2n+2
СnH2n-6
The general formula of acetylene hydrocarbons:
СnH2n-2
СnH2n+2
СnH2n
СnH2n-6
Specify the valence state of the carbon atom in the butane molecule:
sp3
sp
sp2
spd
The valence state of the carbon atom in the ethylene molecule:
sp2
sp
sp3
spd
The valence state of the carbon atom in the acetylene molecule:
sp
sp2
sp3
spd
The chemical reaction of the reaction of propane with chlorine upon irradiation with light proceeds according to the mechanism:AN
SR
AR
SN
SE
