aqueous solution which contains about of ethanol a. . % b. .
% . Which of the following are used as anaesthetics? a. Carboxylic acids b.
Ethers c. Esters d. Aldehydes . TFM in soaps represents content in soap a.
mineral b. vitamin c. fatty acid d. carbohydrate .
Which of the following statements is wrong about detergents? a. It is a sodium salt of long chain fatty acids b. It is sodium salts of sulphonic acids c.
The ionic part in a detergent is –SO – Na + d. It is effective even in hard water. II. Fill in the blanks .
An atom or a group of atoms which is responsible for chemical characteristics of an organic compound is called . . The general molecular formula of alkynes is . In IUPAC name, the carbon skeleton of a compound is represented by (root word / prefix / suffix) .
(Saturated / Unsaturated) compounds decolourize bromine water. . Dehydration of ethanol by conc. Sulphuric acid forms (ethene/ ethane) .
% pure ethanol is called . Ethanoic acid turns litmus to . The alkaline hydrolysis of fatty acids is termed as . Biodegradable detergents are made of (branched / straight) chain hydrocarbons III.
Match the following Functional group –OH Benzene Heterocyclic Potassium stearate Unsaturated Alcohol Soap Furan Carbocyclic Ethene Carbon and its Compounds IV. Assertion and Reason: Answer the following questions using the data given below: i) A and R are correct, R explains the A. ii) A is correct, R is wrong. iii) A is wrong, R is correct.
iv) A and R are correct, R doesn’t explains A. . Assertion : Detergents are more effective cleansing agents than soaps in hard water. Reason : Calcium and magnesium salts of detergents are water soluble.
. Assertion : Alkanes are saturated hydrocarbons. Reason : Hydrocarbons consist of covalent bonds. V.
Short answer questions . Name the simplest ketone and give its structural formula. . Classify the