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Aldehydes

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

The general formulas for aldehydes:

a)

CnH2n+1COH

b)

CnH2n+2COH

c)

R-COH

d)

CnH2nO

e)

R-H-COH

2.

Where we use higher aldehydes

a)

as disinfectant

b)

production of furniture

c)

production of esters

d)

in perfumery

3.

Choose the simplest aldehyde:

a)

Methanal

b)

Ethanal

c)

Benzaldehyde

d)

Formaldehyde

4.

A colorless poisonous liquid under standard conditions, a colorless gas with a pungent odor similar to the smell of rotten apples at room temperature, readily soluble in water, alcohol, ether. What is it?

a)

Propanal

b)

Formaldehyde

c)

Acetaldehyde

d)

Butanal

5.

How does the carbon atom of the carbonyl group hybridize?

a)

sp3

b)

sp, sp2

c)

sp2

d)

sp3

e)

sp, sp3

6.

Что производится в реакции Толленса как осадок?

a)

Cr

b)

Ag

c)

Cu2O

d)

Ni

7.

Aldehyde which can have a very pleasant smell?

a)

Ethanal

b)

Methanal

c)

Heptanal

d)

Pentanal

8.

A gas that is highly soluble in water and has a pungent smell

a)

Methanal

b)

Acetaldehyde

c)

Propanal

d)

Formaldehyde

9.

Which solution of aldehyde can be used as a disinfectant?

a)

Formaldehyde with a 55-60%

b)

Formaldehyde with a 30%

c)

Formaldehyde with a 40%

d)

Formaldehyde with a 50%

10.

Name this compound:

a)

Pentane

b)

2-ethyl propanal

c)

Propanal

d)

Butanal