9th Class Chemistry Chapter 13 Test13. Organic Chemistry

Q1. Multiple choice questions (Attempt all · 7 × 1 = 7)

1. CH3–CH2–CH3 is the chemical formula for:
   1. Ethane
   2. Propane
   3. Butane
   4. Pentane
2. Condensed structural formula for butane is:
   1. CH₃–CH₂–CH₃
   2. CH₃–CH₂–CH₂–CH₃
   3. CH₃–CH₂–CH₂–CH₂–CH₃
   4. CH₃–CH₃
3. The functional group of amines is:
   1. –OH
   2. –COOH
   3. –NH₂
   4. –CHO
4. The functional group is found in:
   1. Alcohols
   2. Ketones
   3. Carboxylic acids
   4. Esters
5. In which of the following is an alcohol?
   1. CH₃–CH₂–O–CH₂–CH₃
   2. CH₃–CH₂–COOH
   3. C₆H₅–OH
   4. CH₃–CH₂–OH
6. Which compound is not a saturated hydrocarbon?
   1. CH₃–CH₃
   2. CH₄
   3. CH₃–CH=CH₂
   4. CH₃–CH₂–CH₃
7. Ethanoic acid contains functional group:
   1. –OH
   2. –CO–
   3. –COOH
   4. –CHO