Dehydration of ethanol by conc. Sulphuric acid forms _______ (ethene/ ethane)
ethene
100 % pure ethanol is called ____________
absolute alcohol
Ethanoic acid turns _______ litmus to _________
blue, Red
The alkaline hydrolysis of fatty acids is termed as _____________
saponification
Biodegradable detergents are made of _________(branched / straight) chain hydrocarbons
straight
Functional group -OH
Alcohol
Heterocyclic
Furan
Unsaturated
Ethene
Soap
Potassium stearate
Carbocyclic
Benzene
(A): Assertion: Detergents are more effective cleansing agents than soaps in hard water... (R): Reason: Calcium and magnesium salts of detergents are water soluble
A and R are correct, R explains the A.
(A): Assertion: Alkanes are saturated hydrocarbons... (R): Reason: Hydrocarbons consist of covalent bonds
A and R are correct, R doesnt explains A.
The molecular formula of an open chain organic compound is C3H6. The class of the compound is
b. alkene
The IUPAC name of an organic compound is 3-Methyl butan-1-ol. What type compound it is?
d. Alcohol
The secondary suffix used in IUPAC nomenclature of an aldehyde is ____
c. - al
Which of the following pairs can be the successive members of a homologous series?
a. C3H8 and C4H10
C2H5OH + 3O2 ---> 2CO2 + 3H2O is a
b. Combustion of ethanol
Rectified spirit is an aqueous solution which contains about _______ of ethanol
a. 95.5 %
Which of the following are used as anaesthetics?
b. Ethers
FM in soaps represents ___________ content in soap
c. fatty acid
Which of the following statements is wrong about detergents?
a. It is a sodium salt of long chain fatty acids
An atom or a group of atoms which is responsible for chemical characteristics of an organic compound is called ____________.
functional group
The general molecular formula of alkynes is _____________
CnH2n-2
In IUPAC name, the carbon skeleton of a compound is represented by _________ (root word / prefix / suffix)
Dehydration of ethanol by conc. Sulphuric acid forms _______ (ethene/ ethane)
ethene
100 % pure ethanol is called ____________
absolute alcohol
Ethanoic acid turns _______ litmus to _________
blue, Red
The alkaline hydrolysis of fatty acids is termed as _____________
saponification
Biodegradable detergents are made of _________(branched / straight) chain hydrocarbons
straight
Functional group -OH
Alcohol
Heterocyclic
Furan
Unsaturated
Ethene
Soap
Potassium stearate
Carbocyclic
Benzene
(A): Assertion: Detergents are more effective cleansing agents than soaps in hard water... (R): Reason: Calcium and magnesium salts of detergents are water soluble
A and R are correct, R explains the A.
(A): Assertion: Alkanes are saturated hydrocarbons... (R): Reason: Hydrocarbons consist of covalent bonds